Two-Step Exfoliation of WS<sub<2</sub< for NO<sub<2</sub<, H<sub<2</sub< and Humidity Sensing Applications
WS<sub<2</sub< exfoliated by a combined ball milling and sonication technique to produce few-layer WS<sub<2</sub< is characterized and assembled as chemo-resistive NO<sub<2</sub<, H<sub<2</sub< and humidity sensors. Microstructural analyses reveal flak...
Ausführliche Beschreibung
Autor*in: |
Valentina Paolucci [verfasserIn] Seyed Mahmoud Emamjomeh [verfasserIn] Michele Nardone [verfasserIn] Luca Ottaviano [verfasserIn] Carlo Cantalini [verfasserIn] |
---|
Format: |
E-Artikel |
---|---|
Sprache: |
Englisch |
Erschienen: |
2019 |
---|
Schlagwörter: |
---|
Übergeordnetes Werk: |
In: Nanomaterials - MDPI AG, 2012, 9(2019), 10, p 1363 |
---|---|
Übergeordnetes Werk: |
volume:9 ; year:2019 ; number:10, p 1363 |
Links: |
---|
DOI / URN: |
10.3390/nano9101363 |
---|
Katalog-ID: |
DOAJ069630275 |
---|
LEADER | 01000caa a22002652 4500 | ||
---|---|---|---|
001 | DOAJ069630275 | ||
003 | DE-627 | ||
005 | 20230503001220.0 | ||
007 | cr uuu---uuuuu | ||
008 | 230228s2019 xx |||||o 00| ||eng c | ||
024 | 7 | |a 10.3390/nano9101363 |2 doi | |
035 | |a (DE-627)DOAJ069630275 | ||
035 | |a (DE-599)DOAJ977d8726971d48229627fc908efa1c6a | ||
040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
041 | |a eng | ||
050 | 0 | |a QD1-999 | |
100 | 0 | |a Valentina Paolucci |e verfasserin |4 aut | |
245 | 1 | 0 | |a Two-Step Exfoliation of WS<sub<2</sub< for NO<sub<2</sub<, H<sub<2</sub< and Humidity Sensing Applications |
264 | 1 | |c 2019 | |
336 | |a Text |b txt |2 rdacontent | ||
337 | |a Computermedien |b c |2 rdamedia | ||
338 | |a Online-Ressource |b cr |2 rdacarrier | ||
520 | |a WS<sub<2</sub< exfoliated by a combined ball milling and sonication technique to produce few-layer WS<sub<2</sub< is characterized and assembled as chemo-resistive NO<sub<2</sub<, H<sub<2</sub< and humidity sensors. Microstructural analyses reveal flakes with average dimensions of 110 nm, “aspect ratio” of lateral dimension to the thickness of 27. Due to spontaneous oxidation of exfoliated WS<sub<2</sub< to amorphous WO<sub<3</sub<, films have been pre-annealed at 180 °C to stabilize WO<sub<3</sub< content at ≈58%, as determined by X-ray Photoelectron Spectroscopy (XPS), Raman and grazing incidence X-ray Diffraction (XRD) techniques. Microstructural analysis repeated after one-year conditioning highlighted that amorphous WO<sub<3</sub< concentration is stable, attesting the validity of the pre-annealing procedure. WS<sub<2</sub< films were NO<sub<2</sub<, H<sub<2</sub< and humidity tested at 150 °C operating Temperature (OT), exhibiting experimental detection limits of 200 ppb and 5 ppm to NO<sub<2</sub< and H<sub<2</sub< in dry air, respectively. Long-term stability of the electrical response recorded over one year of sustained conditions at 150 °C OT and different gases demonstrated good reproducibility of the electrical signal. The role played by WO<sub<3</sub< and WS<sub<2</sub< upon gas response has been addressed and a likely reaction gas-mechanism presented. Controlling the microstructure and surface oxidation of exfoliated Transition Metal Dichalcogenides (TMDs) represents a stepping-stone to assess the reproducibility and long-term response of TMDs monolayers in gas sensing applications. | ||
650 | 4 | |a 2D-materials | |
650 | 4 | |a WS<sub<2</sub< | |
650 | 4 | |a exfoliation | |
650 | 4 | |a gas sensors | |
650 | 4 | |a NO<sub<2</sub< | |
650 | 4 | |a H<sub<2</sub< | |
650 | 4 | |a cross sensitivity | |
653 | 0 | |a Chemistry | |
700 | 0 | |a Seyed Mahmoud Emamjomeh |e verfasserin |4 aut | |
700 | 0 | |a Michele Nardone |e verfasserin |4 aut | |
700 | 0 | |a Luca Ottaviano |e verfasserin |4 aut | |
700 | 0 | |a Carlo Cantalini |e verfasserin |4 aut | |
773 | 0 | 8 | |i In |t Nanomaterials |d MDPI AG, 2012 |g 9(2019), 10, p 1363 |w (DE-627)718627199 |w (DE-600)2662255-5 |x 20794991 |7 nnns |
773 | 1 | 8 | |g volume:9 |g year:2019 |g number:10, p 1363 |
856 | 4 | 0 | |u https://doi.org/10.3390/nano9101363 |z kostenfrei |
856 | 4 | 0 | |u https://doaj.org/article/977d8726971d48229627fc908efa1c6a |z kostenfrei |
856 | 4 | 0 | |u https://www.mdpi.com/2079-4991/9/10/1363 |z kostenfrei |
856 | 4 | 2 | |u https://doaj.org/toc/2079-4991 |y Journal toc |z kostenfrei |
912 | |a GBV_USEFLAG_A | ||
912 | |a SYSFLAG_A | ||
912 | |a GBV_DOAJ | ||
912 | |a SSG-OLC-PHA | ||
912 | |a GBV_ILN_20 | ||
912 | |a GBV_ILN_22 | ||
912 | |a GBV_ILN_23 | ||
912 | |a GBV_ILN_24 | ||
912 | |a GBV_ILN_39 | ||
912 | |a GBV_ILN_40 | ||
912 | |a GBV_ILN_60 | ||
912 | |a GBV_ILN_62 | ||
912 | |a GBV_ILN_63 | ||
912 | |a GBV_ILN_65 | ||
912 | |a GBV_ILN_69 | ||
912 | |a GBV_ILN_70 | ||
912 | |a GBV_ILN_73 | ||
912 | |a GBV_ILN_74 | ||
912 | |a GBV_ILN_95 | ||
912 | |a GBV_ILN_105 | ||
912 | |a GBV_ILN_110 | ||
912 | |a GBV_ILN_151 | ||
912 | |a GBV_ILN_161 | ||
912 | |a GBV_ILN_170 | ||
912 | |a GBV_ILN_213 | ||
912 | |a GBV_ILN_230 | ||
912 | |a GBV_ILN_285 | ||
912 | |a GBV_ILN_293 | ||
912 | |a GBV_ILN_602 | ||
912 | |a GBV_ILN_2014 | ||
912 | |a GBV_ILN_2055 | ||
912 | |a GBV_ILN_2108 | ||
912 | |a GBV_ILN_2119 | ||
912 | |a GBV_ILN_4012 | ||
912 | |a GBV_ILN_4037 | ||
912 | |a GBV_ILN_4112 | ||
912 | |a GBV_ILN_4125 | ||
912 | |a GBV_ILN_4126 | ||
912 | |a GBV_ILN_4249 | ||
912 | |a GBV_ILN_4305 | ||
912 | |a GBV_ILN_4306 | ||
912 | |a GBV_ILN_4307 | ||
912 | |a GBV_ILN_4313 | ||
912 | |a GBV_ILN_4322 | ||
912 | |a GBV_ILN_4323 | ||
912 | |a GBV_ILN_4324 | ||
912 | |a GBV_ILN_4325 | ||
912 | |a GBV_ILN_4335 | ||
912 | |a GBV_ILN_4338 | ||
912 | |a GBV_ILN_4367 | ||
912 | |a GBV_ILN_4700 | ||
951 | |a AR | ||
952 | |d 9 |j 2019 |e 10, p 1363 |
author_variant |
v p vp s m e sme m n mn l o lo c c cc |
---|---|
matchkey_str |
article:20794991:2019----::wseeflainfsu2ufrou2uhu2uadui |
hierarchy_sort_str |
2019 |
callnumber-subject-code |
QD |
publishDate |
2019 |
allfields |
10.3390/nano9101363 doi (DE-627)DOAJ069630275 (DE-599)DOAJ977d8726971d48229627fc908efa1c6a DE-627 ger DE-627 rakwb eng QD1-999 Valentina Paolucci verfasserin aut Two-Step Exfoliation of WS<sub<2</sub< for NO<sub<2</sub<, H<sub<2</sub< and Humidity Sensing Applications 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier WS<sub<2</sub< exfoliated by a combined ball milling and sonication technique to produce few-layer WS<sub<2</sub< is characterized and assembled as chemo-resistive NO<sub<2</sub<, H<sub<2</sub< and humidity sensors. Microstructural analyses reveal flakes with average dimensions of 110 nm, “aspect ratio” of lateral dimension to the thickness of 27. Due to spontaneous oxidation of exfoliated WS<sub<2</sub< to amorphous WO<sub<3</sub<, films have been pre-annealed at 180 °C to stabilize WO<sub<3</sub< content at ≈58%, as determined by X-ray Photoelectron Spectroscopy (XPS), Raman and grazing incidence X-ray Diffraction (XRD) techniques. Microstructural analysis repeated after one-year conditioning highlighted that amorphous WO<sub<3</sub< concentration is stable, attesting the validity of the pre-annealing procedure. WS<sub<2</sub< films were NO<sub<2</sub<, H<sub<2</sub< and humidity tested at 150 °C operating Temperature (OT), exhibiting experimental detection limits of 200 ppb and 5 ppm to NO<sub<2</sub< and H<sub<2</sub< in dry air, respectively. Long-term stability of the electrical response recorded over one year of sustained conditions at 150 °C OT and different gases demonstrated good reproducibility of the electrical signal. The role played by WO<sub<3</sub< and WS<sub<2</sub< upon gas response has been addressed and a likely reaction gas-mechanism presented. Controlling the microstructure and surface oxidation of exfoliated Transition Metal Dichalcogenides (TMDs) represents a stepping-stone to assess the reproducibility and long-term response of TMDs monolayers in gas sensing applications. 2D-materials WS<sub<2</sub< exfoliation gas sensors NO<sub<2</sub< H<sub<2</sub< cross sensitivity Chemistry Seyed Mahmoud Emamjomeh verfasserin aut Michele Nardone verfasserin aut Luca Ottaviano verfasserin aut Carlo Cantalini verfasserin aut In Nanomaterials MDPI AG, 2012 9(2019), 10, p 1363 (DE-627)718627199 (DE-600)2662255-5 20794991 nnns volume:9 year:2019 number:10, p 1363 https://doi.org/10.3390/nano9101363 kostenfrei https://doaj.org/article/977d8726971d48229627fc908efa1c6a kostenfrei https://www.mdpi.com/2079-4991/9/10/1363 kostenfrei https://doaj.org/toc/2079-4991 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 9 2019 10, p 1363 |
spelling |
10.3390/nano9101363 doi (DE-627)DOAJ069630275 (DE-599)DOAJ977d8726971d48229627fc908efa1c6a DE-627 ger DE-627 rakwb eng QD1-999 Valentina Paolucci verfasserin aut Two-Step Exfoliation of WS<sub<2</sub< for NO<sub<2</sub<, H<sub<2</sub< and Humidity Sensing Applications 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier WS<sub<2</sub< exfoliated by a combined ball milling and sonication technique to produce few-layer WS<sub<2</sub< is characterized and assembled as chemo-resistive NO<sub<2</sub<, H<sub<2</sub< and humidity sensors. Microstructural analyses reveal flakes with average dimensions of 110 nm, “aspect ratio” of lateral dimension to the thickness of 27. Due to spontaneous oxidation of exfoliated WS<sub<2</sub< to amorphous WO<sub<3</sub<, films have been pre-annealed at 180 °C to stabilize WO<sub<3</sub< content at ≈58%, as determined by X-ray Photoelectron Spectroscopy (XPS), Raman and grazing incidence X-ray Diffraction (XRD) techniques. Microstructural analysis repeated after one-year conditioning highlighted that amorphous WO<sub<3</sub< concentration is stable, attesting the validity of the pre-annealing procedure. WS<sub<2</sub< films were NO<sub<2</sub<, H<sub<2</sub< and humidity tested at 150 °C operating Temperature (OT), exhibiting experimental detection limits of 200 ppb and 5 ppm to NO<sub<2</sub< and H<sub<2</sub< in dry air, respectively. Long-term stability of the electrical response recorded over one year of sustained conditions at 150 °C OT and different gases demonstrated good reproducibility of the electrical signal. The role played by WO<sub<3</sub< and WS<sub<2</sub< upon gas response has been addressed and a likely reaction gas-mechanism presented. Controlling the microstructure and surface oxidation of exfoliated Transition Metal Dichalcogenides (TMDs) represents a stepping-stone to assess the reproducibility and long-term response of TMDs monolayers in gas sensing applications. 2D-materials WS<sub<2</sub< exfoliation gas sensors NO<sub<2</sub< H<sub<2</sub< cross sensitivity Chemistry Seyed Mahmoud Emamjomeh verfasserin aut Michele Nardone verfasserin aut Luca Ottaviano verfasserin aut Carlo Cantalini verfasserin aut In Nanomaterials MDPI AG, 2012 9(2019), 10, p 1363 (DE-627)718627199 (DE-600)2662255-5 20794991 nnns volume:9 year:2019 number:10, p 1363 https://doi.org/10.3390/nano9101363 kostenfrei https://doaj.org/article/977d8726971d48229627fc908efa1c6a kostenfrei https://www.mdpi.com/2079-4991/9/10/1363 kostenfrei https://doaj.org/toc/2079-4991 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 9 2019 10, p 1363 |
allfields_unstemmed |
10.3390/nano9101363 doi (DE-627)DOAJ069630275 (DE-599)DOAJ977d8726971d48229627fc908efa1c6a DE-627 ger DE-627 rakwb eng QD1-999 Valentina Paolucci verfasserin aut Two-Step Exfoliation of WS<sub<2</sub< for NO<sub<2</sub<, H<sub<2</sub< and Humidity Sensing Applications 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier WS<sub<2</sub< exfoliated by a combined ball milling and sonication technique to produce few-layer WS<sub<2</sub< is characterized and assembled as chemo-resistive NO<sub<2</sub<, H<sub<2</sub< and humidity sensors. Microstructural analyses reveal flakes with average dimensions of 110 nm, “aspect ratio” of lateral dimension to the thickness of 27. Due to spontaneous oxidation of exfoliated WS<sub<2</sub< to amorphous WO<sub<3</sub<, films have been pre-annealed at 180 °C to stabilize WO<sub<3</sub< content at ≈58%, as determined by X-ray Photoelectron Spectroscopy (XPS), Raman and grazing incidence X-ray Diffraction (XRD) techniques. Microstructural analysis repeated after one-year conditioning highlighted that amorphous WO<sub<3</sub< concentration is stable, attesting the validity of the pre-annealing procedure. WS<sub<2</sub< films were NO<sub<2</sub<, H<sub<2</sub< and humidity tested at 150 °C operating Temperature (OT), exhibiting experimental detection limits of 200 ppb and 5 ppm to NO<sub<2</sub< and H<sub<2</sub< in dry air, respectively. Long-term stability of the electrical response recorded over one year of sustained conditions at 150 °C OT and different gases demonstrated good reproducibility of the electrical signal. The role played by WO<sub<3</sub< and WS<sub<2</sub< upon gas response has been addressed and a likely reaction gas-mechanism presented. Controlling the microstructure and surface oxidation of exfoliated Transition Metal Dichalcogenides (TMDs) represents a stepping-stone to assess the reproducibility and long-term response of TMDs monolayers in gas sensing applications. 2D-materials WS<sub<2</sub< exfoliation gas sensors NO<sub<2</sub< H<sub<2</sub< cross sensitivity Chemistry Seyed Mahmoud Emamjomeh verfasserin aut Michele Nardone verfasserin aut Luca Ottaviano verfasserin aut Carlo Cantalini verfasserin aut In Nanomaterials MDPI AG, 2012 9(2019), 10, p 1363 (DE-627)718627199 (DE-600)2662255-5 20794991 nnns volume:9 year:2019 number:10, p 1363 https://doi.org/10.3390/nano9101363 kostenfrei https://doaj.org/article/977d8726971d48229627fc908efa1c6a kostenfrei https://www.mdpi.com/2079-4991/9/10/1363 kostenfrei https://doaj.org/toc/2079-4991 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 9 2019 10, p 1363 |
allfieldsGer |
10.3390/nano9101363 doi (DE-627)DOAJ069630275 (DE-599)DOAJ977d8726971d48229627fc908efa1c6a DE-627 ger DE-627 rakwb eng QD1-999 Valentina Paolucci verfasserin aut Two-Step Exfoliation of WS<sub<2</sub< for NO<sub<2</sub<, H<sub<2</sub< and Humidity Sensing Applications 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier WS<sub<2</sub< exfoliated by a combined ball milling and sonication technique to produce few-layer WS<sub<2</sub< is characterized and assembled as chemo-resistive NO<sub<2</sub<, H<sub<2</sub< and humidity sensors. Microstructural analyses reveal flakes with average dimensions of 110 nm, “aspect ratio” of lateral dimension to the thickness of 27. Due to spontaneous oxidation of exfoliated WS<sub<2</sub< to amorphous WO<sub<3</sub<, films have been pre-annealed at 180 °C to stabilize WO<sub<3</sub< content at ≈58%, as determined by X-ray Photoelectron Spectroscopy (XPS), Raman and grazing incidence X-ray Diffraction (XRD) techniques. Microstructural analysis repeated after one-year conditioning highlighted that amorphous WO<sub<3</sub< concentration is stable, attesting the validity of the pre-annealing procedure. WS<sub<2</sub< films were NO<sub<2</sub<, H<sub<2</sub< and humidity tested at 150 °C operating Temperature (OT), exhibiting experimental detection limits of 200 ppb and 5 ppm to NO<sub<2</sub< and H<sub<2</sub< in dry air, respectively. Long-term stability of the electrical response recorded over one year of sustained conditions at 150 °C OT and different gases demonstrated good reproducibility of the electrical signal. The role played by WO<sub<3</sub< and WS<sub<2</sub< upon gas response has been addressed and a likely reaction gas-mechanism presented. Controlling the microstructure and surface oxidation of exfoliated Transition Metal Dichalcogenides (TMDs) represents a stepping-stone to assess the reproducibility and long-term response of TMDs monolayers in gas sensing applications. 2D-materials WS<sub<2</sub< exfoliation gas sensors NO<sub<2</sub< H<sub<2</sub< cross sensitivity Chemistry Seyed Mahmoud Emamjomeh verfasserin aut Michele Nardone verfasserin aut Luca Ottaviano verfasserin aut Carlo Cantalini verfasserin aut In Nanomaterials MDPI AG, 2012 9(2019), 10, p 1363 (DE-627)718627199 (DE-600)2662255-5 20794991 nnns volume:9 year:2019 number:10, p 1363 https://doi.org/10.3390/nano9101363 kostenfrei https://doaj.org/article/977d8726971d48229627fc908efa1c6a kostenfrei https://www.mdpi.com/2079-4991/9/10/1363 kostenfrei https://doaj.org/toc/2079-4991 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 9 2019 10, p 1363 |
allfieldsSound |
10.3390/nano9101363 doi (DE-627)DOAJ069630275 (DE-599)DOAJ977d8726971d48229627fc908efa1c6a DE-627 ger DE-627 rakwb eng QD1-999 Valentina Paolucci verfasserin aut Two-Step Exfoliation of WS<sub<2</sub< for NO<sub<2</sub<, H<sub<2</sub< and Humidity Sensing Applications 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier WS<sub<2</sub< exfoliated by a combined ball milling and sonication technique to produce few-layer WS<sub<2</sub< is characterized and assembled as chemo-resistive NO<sub<2</sub<, H<sub<2</sub< and humidity sensors. Microstructural analyses reveal flakes with average dimensions of 110 nm, “aspect ratio” of lateral dimension to the thickness of 27. Due to spontaneous oxidation of exfoliated WS<sub<2</sub< to amorphous WO<sub<3</sub<, films have been pre-annealed at 180 °C to stabilize WO<sub<3</sub< content at ≈58%, as determined by X-ray Photoelectron Spectroscopy (XPS), Raman and grazing incidence X-ray Diffraction (XRD) techniques. Microstructural analysis repeated after one-year conditioning highlighted that amorphous WO<sub<3</sub< concentration is stable, attesting the validity of the pre-annealing procedure. WS<sub<2</sub< films were NO<sub<2</sub<, H<sub<2</sub< and humidity tested at 150 °C operating Temperature (OT), exhibiting experimental detection limits of 200 ppb and 5 ppm to NO<sub<2</sub< and H<sub<2</sub< in dry air, respectively. Long-term stability of the electrical response recorded over one year of sustained conditions at 150 °C OT and different gases demonstrated good reproducibility of the electrical signal. The role played by WO<sub<3</sub< and WS<sub<2</sub< upon gas response has been addressed and a likely reaction gas-mechanism presented. Controlling the microstructure and surface oxidation of exfoliated Transition Metal Dichalcogenides (TMDs) represents a stepping-stone to assess the reproducibility and long-term response of TMDs monolayers in gas sensing applications. 2D-materials WS<sub<2</sub< exfoliation gas sensors NO<sub<2</sub< H<sub<2</sub< cross sensitivity Chemistry Seyed Mahmoud Emamjomeh verfasserin aut Michele Nardone verfasserin aut Luca Ottaviano verfasserin aut Carlo Cantalini verfasserin aut In Nanomaterials MDPI AG, 2012 9(2019), 10, p 1363 (DE-627)718627199 (DE-600)2662255-5 20794991 nnns volume:9 year:2019 number:10, p 1363 https://doi.org/10.3390/nano9101363 kostenfrei https://doaj.org/article/977d8726971d48229627fc908efa1c6a kostenfrei https://www.mdpi.com/2079-4991/9/10/1363 kostenfrei https://doaj.org/toc/2079-4991 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 9 2019 10, p 1363 |
language |
English |
source |
In Nanomaterials 9(2019), 10, p 1363 volume:9 year:2019 number:10, p 1363 |
sourceStr |
In Nanomaterials 9(2019), 10, p 1363 volume:9 year:2019 number:10, p 1363 |
format_phy_str_mv |
Article |
institution |
findex.gbv.de |
topic_facet |
2D-materials WS<sub<2</sub< exfoliation gas sensors NO<sub<2</sub< H<sub<2</sub< cross sensitivity Chemistry |
isfreeaccess_bool |
true |
container_title |
Nanomaterials |
authorswithroles_txt_mv |
Valentina Paolucci @@aut@@ Seyed Mahmoud Emamjomeh @@aut@@ Michele Nardone @@aut@@ Luca Ottaviano @@aut@@ Carlo Cantalini @@aut@@ |
publishDateDaySort_date |
2019-01-01T00:00:00Z |
hierarchy_top_id |
718627199 |
id |
DOAJ069630275 |
language_de |
englisch |
fullrecord |
<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">DOAJ069630275</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230503001220.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">230228s2019 xx |||||o 00| ||eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.3390/nano9101363</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)DOAJ069630275</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-599)DOAJ977d8726971d48229627fc908efa1c6a</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="050" ind1=" " ind2="0"><subfield code="a">QD1-999</subfield></datafield><datafield tag="100" ind1="0" ind2=" "><subfield code="a">Valentina Paolucci</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Two-Step Exfoliation of WS<sub<2</sub< for NO<sub<2</sub<, H<sub<2</sub< and Humidity Sensing Applications</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2019</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">WS<sub<2</sub< exfoliated by a combined ball milling and sonication technique to produce few-layer WS<sub<2</sub< is characterized and assembled as chemo-resistive NO<sub<2</sub<, H<sub<2</sub< and humidity sensors. Microstructural analyses reveal flakes with average dimensions of 110 nm, “aspect ratio” of lateral dimension to the thickness of 27. Due to spontaneous oxidation of exfoliated WS<sub<2</sub< to amorphous WO<sub<3</sub<, films have been pre-annealed at 180 °C to stabilize WO<sub<3</sub< content at ≈58%, as determined by X-ray Photoelectron Spectroscopy (XPS), Raman and grazing incidence X-ray Diffraction (XRD) techniques. Microstructural analysis repeated after one-year conditioning highlighted that amorphous WO<sub<3</sub< concentration is stable, attesting the validity of the pre-annealing procedure. WS<sub<2</sub< films were NO<sub<2</sub<, H<sub<2</sub< and humidity tested at 150 °C operating Temperature (OT), exhibiting experimental detection limits of 200 ppb and 5 ppm to NO<sub<2</sub< and H<sub<2</sub< in dry air, respectively. Long-term stability of the electrical response recorded over one year of sustained conditions at 150 °C OT and different gases demonstrated good reproducibility of the electrical signal. The role played by WO<sub<3</sub< and WS<sub<2</sub< upon gas response has been addressed and a likely reaction gas-mechanism presented. Controlling the microstructure and surface oxidation of exfoliated Transition Metal Dichalcogenides (TMDs) represents a stepping-stone to assess the reproducibility and long-term response of TMDs monolayers in gas sensing applications.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">2D-materials</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">WS<sub<2</sub<</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">exfoliation</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">gas sensors</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">NO<sub<2</sub<</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">H<sub<2</sub<</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">cross sensitivity</subfield></datafield><datafield tag="653" ind1=" " ind2="0"><subfield code="a">Chemistry</subfield></datafield><datafield tag="700" ind1="0" ind2=" "><subfield code="a">Seyed Mahmoud Emamjomeh</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="0" ind2=" "><subfield code="a">Michele Nardone</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="0" ind2=" "><subfield code="a">Luca Ottaviano</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="0" ind2=" "><subfield code="a">Carlo Cantalini</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">In</subfield><subfield code="t">Nanomaterials</subfield><subfield code="d">MDPI AG, 2012</subfield><subfield code="g">9(2019), 10, p 1363</subfield><subfield code="w">(DE-627)718627199</subfield><subfield code="w">(DE-600)2662255-5</subfield><subfield code="x">20794991</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:9</subfield><subfield code="g">year:2019</subfield><subfield code="g">number:10, p 1363</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">https://doi.org/10.3390/nano9101363</subfield><subfield code="z">kostenfrei</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">https://doaj.org/article/977d8726971d48229627fc908efa1c6a</subfield><subfield code="z">kostenfrei</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">https://www.mdpi.com/2079-4991/9/10/1363</subfield><subfield code="z">kostenfrei</subfield></datafield><datafield tag="856" ind1="4" ind2="2"><subfield code="u">https://doaj.org/toc/2079-4991</subfield><subfield code="y">Journal toc</subfield><subfield code="z">kostenfrei</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_DOAJ</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-PHA</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_20</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_22</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_23</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_24</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_39</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_40</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_60</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_62</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_63</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_65</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_69</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_70</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_73</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_74</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_95</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_105</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_110</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_151</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_161</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_170</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_213</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_230</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_285</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_293</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_602</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2014</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2055</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2108</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2119</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4012</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4037</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4112</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4125</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4126</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4249</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4305</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4306</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4307</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4313</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4322</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4323</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4324</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4325</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4335</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4338</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4367</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4700</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">9</subfield><subfield code="j">2019</subfield><subfield code="e">10, p 1363</subfield></datafield></record></collection>
|
callnumber-first |
Q - Science |
author |
Valentina Paolucci |
spellingShingle |
Valentina Paolucci misc QD1-999 misc 2D-materials misc WS<sub<2</sub< misc exfoliation misc gas sensors misc NO<sub<2</sub< misc H<sub<2</sub< misc cross sensitivity misc Chemistry Two-Step Exfoliation of WS<sub<2</sub< for NO<sub<2</sub<, H<sub<2</sub< and Humidity Sensing Applications |
authorStr |
Valentina Paolucci |
ppnlink_with_tag_str_mv |
@@773@@(DE-627)718627199 |
format |
electronic Article |
delete_txt_mv |
keep |
author_role |
aut aut aut aut aut |
collection |
DOAJ |
remote_str |
true |
callnumber-label |
QD1-999 |
illustrated |
Not Illustrated |
issn |
20794991 |
topic_title |
QD1-999 Two-Step Exfoliation of WS<sub<2</sub< for NO<sub<2</sub<, H<sub<2</sub< and Humidity Sensing Applications 2D-materials WS<sub<2</sub< exfoliation gas sensors NO<sub<2</sub< H<sub<2</sub< cross sensitivity |
topic |
misc QD1-999 misc 2D-materials misc WS<sub<2</sub< misc exfoliation misc gas sensors misc NO<sub<2</sub< misc H<sub<2</sub< misc cross sensitivity misc Chemistry |
topic_unstemmed |
misc QD1-999 misc 2D-materials misc WS<sub<2</sub< misc exfoliation misc gas sensors misc NO<sub<2</sub< misc H<sub<2</sub< misc cross sensitivity misc Chemistry |
topic_browse |
misc QD1-999 misc 2D-materials misc WS<sub<2</sub< misc exfoliation misc gas sensors misc NO<sub<2</sub< misc H<sub<2</sub< misc cross sensitivity misc Chemistry |
format_facet |
Elektronische Aufsätze Aufsätze Elektronische Ressource |
format_main_str_mv |
Text Zeitschrift/Artikel |
carriertype_str_mv |
cr |
hierarchy_parent_title |
Nanomaterials |
hierarchy_parent_id |
718627199 |
hierarchy_top_title |
Nanomaterials |
isfreeaccess_txt |
true |
familylinks_str_mv |
(DE-627)718627199 (DE-600)2662255-5 |
title |
Two-Step Exfoliation of WS<sub<2</sub< for NO<sub<2</sub<, H<sub<2</sub< and Humidity Sensing Applications |
ctrlnum |
(DE-627)DOAJ069630275 (DE-599)DOAJ977d8726971d48229627fc908efa1c6a |
title_full |
Two-Step Exfoliation of WS<sub<2</sub< for NO<sub<2</sub<, H<sub<2</sub< and Humidity Sensing Applications |
author_sort |
Valentina Paolucci |
journal |
Nanomaterials |
journalStr |
Nanomaterials |
callnumber-first-code |
Q |
lang_code |
eng |
isOA_bool |
true |
recordtype |
marc |
publishDateSort |
2019 |
contenttype_str_mv |
txt |
author_browse |
Valentina Paolucci Seyed Mahmoud Emamjomeh Michele Nardone Luca Ottaviano Carlo Cantalini |
container_volume |
9 |
class |
QD1-999 |
format_se |
Elektronische Aufsätze |
author-letter |
Valentina Paolucci |
doi_str_mv |
10.3390/nano9101363 |
author2-role |
verfasserin |
title_sort |
two-step exfoliation of ws<sub<2</sub< for no<sub<2</sub<, h<sub<2</sub< and humidity sensing applications |
callnumber |
QD1-999 |
title_auth |
Two-Step Exfoliation of WS<sub<2</sub< for NO<sub<2</sub<, H<sub<2</sub< and Humidity Sensing Applications |
abstract |
WS<sub<2</sub< exfoliated by a combined ball milling and sonication technique to produce few-layer WS<sub<2</sub< is characterized and assembled as chemo-resistive NO<sub<2</sub<, H<sub<2</sub< and humidity sensors. Microstructural analyses reveal flakes with average dimensions of 110 nm, “aspect ratio” of lateral dimension to the thickness of 27. Due to spontaneous oxidation of exfoliated WS<sub<2</sub< to amorphous WO<sub<3</sub<, films have been pre-annealed at 180 °C to stabilize WO<sub<3</sub< content at ≈58%, as determined by X-ray Photoelectron Spectroscopy (XPS), Raman and grazing incidence X-ray Diffraction (XRD) techniques. Microstructural analysis repeated after one-year conditioning highlighted that amorphous WO<sub<3</sub< concentration is stable, attesting the validity of the pre-annealing procedure. WS<sub<2</sub< films were NO<sub<2</sub<, H<sub<2</sub< and humidity tested at 150 °C operating Temperature (OT), exhibiting experimental detection limits of 200 ppb and 5 ppm to NO<sub<2</sub< and H<sub<2</sub< in dry air, respectively. Long-term stability of the electrical response recorded over one year of sustained conditions at 150 °C OT and different gases demonstrated good reproducibility of the electrical signal. The role played by WO<sub<3</sub< and WS<sub<2</sub< upon gas response has been addressed and a likely reaction gas-mechanism presented. Controlling the microstructure and surface oxidation of exfoliated Transition Metal Dichalcogenides (TMDs) represents a stepping-stone to assess the reproducibility and long-term response of TMDs monolayers in gas sensing applications. |
abstractGer |
WS<sub<2</sub< exfoliated by a combined ball milling and sonication technique to produce few-layer WS<sub<2</sub< is characterized and assembled as chemo-resistive NO<sub<2</sub<, H<sub<2</sub< and humidity sensors. Microstructural analyses reveal flakes with average dimensions of 110 nm, “aspect ratio” of lateral dimension to the thickness of 27. Due to spontaneous oxidation of exfoliated WS<sub<2</sub< to amorphous WO<sub<3</sub<, films have been pre-annealed at 180 °C to stabilize WO<sub<3</sub< content at ≈58%, as determined by X-ray Photoelectron Spectroscopy (XPS), Raman and grazing incidence X-ray Diffraction (XRD) techniques. Microstructural analysis repeated after one-year conditioning highlighted that amorphous WO<sub<3</sub< concentration is stable, attesting the validity of the pre-annealing procedure. WS<sub<2</sub< films were NO<sub<2</sub<, H<sub<2</sub< and humidity tested at 150 °C operating Temperature (OT), exhibiting experimental detection limits of 200 ppb and 5 ppm to NO<sub<2</sub< and H<sub<2</sub< in dry air, respectively. Long-term stability of the electrical response recorded over one year of sustained conditions at 150 °C OT and different gases demonstrated good reproducibility of the electrical signal. The role played by WO<sub<3</sub< and WS<sub<2</sub< upon gas response has been addressed and a likely reaction gas-mechanism presented. Controlling the microstructure and surface oxidation of exfoliated Transition Metal Dichalcogenides (TMDs) represents a stepping-stone to assess the reproducibility and long-term response of TMDs monolayers in gas sensing applications. |
abstract_unstemmed |
WS<sub<2</sub< exfoliated by a combined ball milling and sonication technique to produce few-layer WS<sub<2</sub< is characterized and assembled as chemo-resistive NO<sub<2</sub<, H<sub<2</sub< and humidity sensors. Microstructural analyses reveal flakes with average dimensions of 110 nm, “aspect ratio” of lateral dimension to the thickness of 27. Due to spontaneous oxidation of exfoliated WS<sub<2</sub< to amorphous WO<sub<3</sub<, films have been pre-annealed at 180 °C to stabilize WO<sub<3</sub< content at ≈58%, as determined by X-ray Photoelectron Spectroscopy (XPS), Raman and grazing incidence X-ray Diffraction (XRD) techniques. Microstructural analysis repeated after one-year conditioning highlighted that amorphous WO<sub<3</sub< concentration is stable, attesting the validity of the pre-annealing procedure. WS<sub<2</sub< films were NO<sub<2</sub<, H<sub<2</sub< and humidity tested at 150 °C operating Temperature (OT), exhibiting experimental detection limits of 200 ppb and 5 ppm to NO<sub<2</sub< and H<sub<2</sub< in dry air, respectively. Long-term stability of the electrical response recorded over one year of sustained conditions at 150 °C OT and different gases demonstrated good reproducibility of the electrical signal. The role played by WO<sub<3</sub< and WS<sub<2</sub< upon gas response has been addressed and a likely reaction gas-mechanism presented. Controlling the microstructure and surface oxidation of exfoliated Transition Metal Dichalcogenides (TMDs) represents a stepping-stone to assess the reproducibility and long-term response of TMDs monolayers in gas sensing applications. |
collection_details |
GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 |
container_issue |
10, p 1363 |
title_short |
Two-Step Exfoliation of WS<sub<2</sub< for NO<sub<2</sub<, H<sub<2</sub< and Humidity Sensing Applications |
url |
https://doi.org/10.3390/nano9101363 https://doaj.org/article/977d8726971d48229627fc908efa1c6a https://www.mdpi.com/2079-4991/9/10/1363 https://doaj.org/toc/2079-4991 |
remote_bool |
true |
author2 |
Seyed Mahmoud Emamjomeh Michele Nardone Luca Ottaviano Carlo Cantalini |
author2Str |
Seyed Mahmoud Emamjomeh Michele Nardone Luca Ottaviano Carlo Cantalini |
ppnlink |
718627199 |
callnumber-subject |
QD - Chemistry |
mediatype_str_mv |
c |
isOA_txt |
true |
hochschulschrift_bool |
false |
doi_str |
10.3390/nano9101363 |
callnumber-a |
QD1-999 |
up_date |
2024-07-04T00:04:04.431Z |
_version_ |
1803604663397777408 |
fullrecord_marcxml |
<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">DOAJ069630275</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230503001220.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">230228s2019 xx |||||o 00| ||eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.3390/nano9101363</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)DOAJ069630275</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-599)DOAJ977d8726971d48229627fc908efa1c6a</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="050" ind1=" " ind2="0"><subfield code="a">QD1-999</subfield></datafield><datafield tag="100" ind1="0" ind2=" "><subfield code="a">Valentina Paolucci</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Two-Step Exfoliation of WS<sub<2</sub< for NO<sub<2</sub<, H<sub<2</sub< and Humidity Sensing Applications</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2019</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">WS<sub<2</sub< exfoliated by a combined ball milling and sonication technique to produce few-layer WS<sub<2</sub< is characterized and assembled as chemo-resistive NO<sub<2</sub<, H<sub<2</sub< and humidity sensors. Microstructural analyses reveal flakes with average dimensions of 110 nm, “aspect ratio” of lateral dimension to the thickness of 27. Due to spontaneous oxidation of exfoliated WS<sub<2</sub< to amorphous WO<sub<3</sub<, films have been pre-annealed at 180 °C to stabilize WO<sub<3</sub< content at ≈58%, as determined by X-ray Photoelectron Spectroscopy (XPS), Raman and grazing incidence X-ray Diffraction (XRD) techniques. Microstructural analysis repeated after one-year conditioning highlighted that amorphous WO<sub<3</sub< concentration is stable, attesting the validity of the pre-annealing procedure. WS<sub<2</sub< films were NO<sub<2</sub<, H<sub<2</sub< and humidity tested at 150 °C operating Temperature (OT), exhibiting experimental detection limits of 200 ppb and 5 ppm to NO<sub<2</sub< and H<sub<2</sub< in dry air, respectively. Long-term stability of the electrical response recorded over one year of sustained conditions at 150 °C OT and different gases demonstrated good reproducibility of the electrical signal. The role played by WO<sub<3</sub< and WS<sub<2</sub< upon gas response has been addressed and a likely reaction gas-mechanism presented. Controlling the microstructure and surface oxidation of exfoliated Transition Metal Dichalcogenides (TMDs) represents a stepping-stone to assess the reproducibility and long-term response of TMDs monolayers in gas sensing applications.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">2D-materials</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">WS<sub<2</sub<</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">exfoliation</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">gas sensors</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">NO<sub<2</sub<</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">H<sub<2</sub<</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">cross sensitivity</subfield></datafield><datafield tag="653" ind1=" " ind2="0"><subfield code="a">Chemistry</subfield></datafield><datafield tag="700" ind1="0" ind2=" "><subfield code="a">Seyed Mahmoud Emamjomeh</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="0" ind2=" "><subfield code="a">Michele Nardone</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="0" ind2=" "><subfield code="a">Luca Ottaviano</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="0" ind2=" "><subfield code="a">Carlo Cantalini</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">In</subfield><subfield code="t">Nanomaterials</subfield><subfield code="d">MDPI AG, 2012</subfield><subfield code="g">9(2019), 10, p 1363</subfield><subfield code="w">(DE-627)718627199</subfield><subfield code="w">(DE-600)2662255-5</subfield><subfield code="x">20794991</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:9</subfield><subfield code="g">year:2019</subfield><subfield code="g">number:10, p 1363</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">https://doi.org/10.3390/nano9101363</subfield><subfield code="z">kostenfrei</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">https://doaj.org/article/977d8726971d48229627fc908efa1c6a</subfield><subfield code="z">kostenfrei</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">https://www.mdpi.com/2079-4991/9/10/1363</subfield><subfield code="z">kostenfrei</subfield></datafield><datafield tag="856" ind1="4" ind2="2"><subfield code="u">https://doaj.org/toc/2079-4991</subfield><subfield code="y">Journal toc</subfield><subfield code="z">kostenfrei</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_DOAJ</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-PHA</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_20</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_22</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_23</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_24</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_39</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_40</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_60</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_62</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_63</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_65</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_69</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_70</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_73</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_74</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_95</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_105</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_110</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_151</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_161</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_170</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_213</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_230</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_285</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_293</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_602</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2014</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2055</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2108</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2119</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4012</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4037</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4112</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4125</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4126</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4249</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4305</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4306</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4307</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4313</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4322</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4323</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4324</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4325</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4335</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4338</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4367</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4700</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">9</subfield><subfield code="j">2019</subfield><subfield code="e">10, p 1363</subfield></datafield></record></collection>
|
score |
7.4002895 |