Flexible humidity sensor based on crosslinked polyethyleneimine/tannic acid and porous carbonaceous interdigitated electrode
For their advantages of flexibility in nature, low cost, and ease of processing, polymers and polymer composites are considered to be ideal candidates for the development of wearable and flexible humidity sensors. Nevertheless, the commonly adopted polymer-based humidity sensing materials are usuall...
Ausführliche Beschreibung
Autor*in: |
He, Hongyan [verfasserIn] Yao, Yanbo [verfasserIn] Liu, Tao [verfasserIn] |
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Format: |
E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2023 |
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Schlagwörter: |
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Übergeordnetes Werk: |
Enthalten in: Sensors and actuators |
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Übergeordnetes Werk: |
volume:393 |
DOI / URN: |
10.1016/j.snb.2023.134194 |
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Katalog-ID: |
ELV061866695 |
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245 | 1 | 0 | |a Flexible humidity sensor based on crosslinked polyethyleneimine/tannic acid and porous carbonaceous interdigitated electrode |
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520 | |a For their advantages of flexibility in nature, low cost, and ease of processing, polymers and polymer composites are considered to be ideal candidates for the development of wearable and flexible humidity sensors. Nevertheless, the commonly adopted polymer-based humidity sensing materials are usually subjected to long-term stability issue, due to a lack of chemically crosslinked network structure. Herein, we rely on the robust Michael addition reaction between polyethyleneimine (PEI) and tannic acid (TA) in aqueous solution for fabricating the chemically crosslinked TA-x-PEI based humidity sensors through a simple spray coating process. With assistance of direct laser writing carbonization (DLWc) technique, we demonstrate that the combination of TA-x-PEI with porous carbon interdigitated electrode (PC-IDE) allows for facile fabrication of high-performance flexible humidity sensors, which possess fast response and recovery performance (28 s/12 s), low hysteresis (2%) in the range of 35% RH - 90% RH, good long-term stability (impedance change < 2% over 30 days) and high sensitivity, as demonstrated by a comparison of key metrics with similar humidity sensors reported in the literature. SEM microscopy, Raman and FTIR spectroscopy, frequency-dependent impedance measurement, as well as equivalent circuit modeling have been performed to gain an in-depth understanding of the humidity sensing behavior and the underlying mechanism for the newly developed PC-IDE enabled TA-x-PEI based humidity sensors. | ||
650 | 4 | |a Polyethyleneimine | |
650 | 4 | |a Tannic acid | |
650 | 4 | |a Crosslinking | |
650 | 4 | |a Humidity sensor | |
650 | 4 | |a Porous interdigitated electrode | |
650 | 4 | |a Direct laser writing carbonization | |
700 | 1 | |a Yao, Yanbo |e verfasserin |4 aut | |
700 | 1 | |a Liu, Tao |e verfasserin |4 aut | |
773 | 0 | 8 | |i Enthalten in |t Sensors and actuators <Lausanne> / B |d Amsterdam [u.a.] : Elsevier Science, 1990 |g 393 |h Online-Ressource |w (DE-627)306710358 |w (DE-600)1500731-5 |w (DE-576)082435855 |x 0925-4005 |7 nnns |
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allfields |
10.1016/j.snb.2023.134194 doi (DE-627)ELV061866695 (ELSEVIER)S0925-4005(23)00909-7 DE-627 ger DE-627 rda eng 530 620 VZ 50.22 bkl 35.07 bkl He, Hongyan verfasserin aut Flexible humidity sensor based on crosslinked polyethyleneimine/tannic acid and porous carbonaceous interdigitated electrode 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier For their advantages of flexibility in nature, low cost, and ease of processing, polymers and polymer composites are considered to be ideal candidates for the development of wearable and flexible humidity sensors. Nevertheless, the commonly adopted polymer-based humidity sensing materials are usually subjected to long-term stability issue, due to a lack of chemically crosslinked network structure. Herein, we rely on the robust Michael addition reaction between polyethyleneimine (PEI) and tannic acid (TA) in aqueous solution for fabricating the chemically crosslinked TA-x-PEI based humidity sensors through a simple spray coating process. With assistance of direct laser writing carbonization (DLWc) technique, we demonstrate that the combination of TA-x-PEI with porous carbon interdigitated electrode (PC-IDE) allows for facile fabrication of high-performance flexible humidity sensors, which possess fast response and recovery performance (28 s/12 s), low hysteresis (2%) in the range of 35% RH - 90% RH, good long-term stability (impedance change < 2% over 30 days) and high sensitivity, as demonstrated by a comparison of key metrics with similar humidity sensors reported in the literature. SEM microscopy, Raman and FTIR spectroscopy, frequency-dependent impedance measurement, as well as equivalent circuit modeling have been performed to gain an in-depth understanding of the humidity sensing behavior and the underlying mechanism for the newly developed PC-IDE enabled TA-x-PEI based humidity sensors. Polyethyleneimine Tannic acid Crosslinking Humidity sensor Porous interdigitated electrode Direct laser writing carbonization Yao, Yanbo verfasserin aut Liu, Tao verfasserin aut Enthalten in Sensors and actuators <Lausanne> / B Amsterdam [u.a.] : Elsevier Science, 1990 393 Online-Ressource (DE-627)306710358 (DE-600)1500731-5 (DE-576)082435855 0925-4005 nnns volume:393 GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 50.22 Sensorik VZ 35.07 Chemisches Labor chemische Methoden VZ AR 393 |
spelling |
10.1016/j.snb.2023.134194 doi (DE-627)ELV061866695 (ELSEVIER)S0925-4005(23)00909-7 DE-627 ger DE-627 rda eng 530 620 VZ 50.22 bkl 35.07 bkl He, Hongyan verfasserin aut Flexible humidity sensor based on crosslinked polyethyleneimine/tannic acid and porous carbonaceous interdigitated electrode 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier For their advantages of flexibility in nature, low cost, and ease of processing, polymers and polymer composites are considered to be ideal candidates for the development of wearable and flexible humidity sensors. Nevertheless, the commonly adopted polymer-based humidity sensing materials are usually subjected to long-term stability issue, due to a lack of chemically crosslinked network structure. Herein, we rely on the robust Michael addition reaction between polyethyleneimine (PEI) and tannic acid (TA) in aqueous solution for fabricating the chemically crosslinked TA-x-PEI based humidity sensors through a simple spray coating process. With assistance of direct laser writing carbonization (DLWc) technique, we demonstrate that the combination of TA-x-PEI with porous carbon interdigitated electrode (PC-IDE) allows for facile fabrication of high-performance flexible humidity sensors, which possess fast response and recovery performance (28 s/12 s), low hysteresis (2%) in the range of 35% RH - 90% RH, good long-term stability (impedance change < 2% over 30 days) and high sensitivity, as demonstrated by a comparison of key metrics with similar humidity sensors reported in the literature. SEM microscopy, Raman and FTIR spectroscopy, frequency-dependent impedance measurement, as well as equivalent circuit modeling have been performed to gain an in-depth understanding of the humidity sensing behavior and the underlying mechanism for the newly developed PC-IDE enabled TA-x-PEI based humidity sensors. Polyethyleneimine Tannic acid Crosslinking Humidity sensor Porous interdigitated electrode Direct laser writing carbonization Yao, Yanbo verfasserin aut Liu, Tao verfasserin aut Enthalten in Sensors and actuators <Lausanne> / B Amsterdam [u.a.] : Elsevier Science, 1990 393 Online-Ressource (DE-627)306710358 (DE-600)1500731-5 (DE-576)082435855 0925-4005 nnns volume:393 GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 50.22 Sensorik VZ 35.07 Chemisches Labor chemische Methoden VZ AR 393 |
allfields_unstemmed |
10.1016/j.snb.2023.134194 doi (DE-627)ELV061866695 (ELSEVIER)S0925-4005(23)00909-7 DE-627 ger DE-627 rda eng 530 620 VZ 50.22 bkl 35.07 bkl He, Hongyan verfasserin aut Flexible humidity sensor based on crosslinked polyethyleneimine/tannic acid and porous carbonaceous interdigitated electrode 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier For their advantages of flexibility in nature, low cost, and ease of processing, polymers and polymer composites are considered to be ideal candidates for the development of wearable and flexible humidity sensors. Nevertheless, the commonly adopted polymer-based humidity sensing materials are usually subjected to long-term stability issue, due to a lack of chemically crosslinked network structure. Herein, we rely on the robust Michael addition reaction between polyethyleneimine (PEI) and tannic acid (TA) in aqueous solution for fabricating the chemically crosslinked TA-x-PEI based humidity sensors through a simple spray coating process. With assistance of direct laser writing carbonization (DLWc) technique, we demonstrate that the combination of TA-x-PEI with porous carbon interdigitated electrode (PC-IDE) allows for facile fabrication of high-performance flexible humidity sensors, which possess fast response and recovery performance (28 s/12 s), low hysteresis (2%) in the range of 35% RH - 90% RH, good long-term stability (impedance change < 2% over 30 days) and high sensitivity, as demonstrated by a comparison of key metrics with similar humidity sensors reported in the literature. SEM microscopy, Raman and FTIR spectroscopy, frequency-dependent impedance measurement, as well as equivalent circuit modeling have been performed to gain an in-depth understanding of the humidity sensing behavior and the underlying mechanism for the newly developed PC-IDE enabled TA-x-PEI based humidity sensors. Polyethyleneimine Tannic acid Crosslinking Humidity sensor Porous interdigitated electrode Direct laser writing carbonization Yao, Yanbo verfasserin aut Liu, Tao verfasserin aut Enthalten in Sensors and actuators <Lausanne> / B Amsterdam [u.a.] : Elsevier Science, 1990 393 Online-Ressource (DE-627)306710358 (DE-600)1500731-5 (DE-576)082435855 0925-4005 nnns volume:393 GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 50.22 Sensorik VZ 35.07 Chemisches Labor chemische Methoden VZ AR 393 |
allfieldsGer |
10.1016/j.snb.2023.134194 doi (DE-627)ELV061866695 (ELSEVIER)S0925-4005(23)00909-7 DE-627 ger DE-627 rda eng 530 620 VZ 50.22 bkl 35.07 bkl He, Hongyan verfasserin aut Flexible humidity sensor based on crosslinked polyethyleneimine/tannic acid and porous carbonaceous interdigitated electrode 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier For their advantages of flexibility in nature, low cost, and ease of processing, polymers and polymer composites are considered to be ideal candidates for the development of wearable and flexible humidity sensors. Nevertheless, the commonly adopted polymer-based humidity sensing materials are usually subjected to long-term stability issue, due to a lack of chemically crosslinked network structure. Herein, we rely on the robust Michael addition reaction between polyethyleneimine (PEI) and tannic acid (TA) in aqueous solution for fabricating the chemically crosslinked TA-x-PEI based humidity sensors through a simple spray coating process. With assistance of direct laser writing carbonization (DLWc) technique, we demonstrate that the combination of TA-x-PEI with porous carbon interdigitated electrode (PC-IDE) allows for facile fabrication of high-performance flexible humidity sensors, which possess fast response and recovery performance (28 s/12 s), low hysteresis (2%) in the range of 35% RH - 90% RH, good long-term stability (impedance change < 2% over 30 days) and high sensitivity, as demonstrated by a comparison of key metrics with similar humidity sensors reported in the literature. SEM microscopy, Raman and FTIR spectroscopy, frequency-dependent impedance measurement, as well as equivalent circuit modeling have been performed to gain an in-depth understanding of the humidity sensing behavior and the underlying mechanism for the newly developed PC-IDE enabled TA-x-PEI based humidity sensors. Polyethyleneimine Tannic acid Crosslinking Humidity sensor Porous interdigitated electrode Direct laser writing carbonization Yao, Yanbo verfasserin aut Liu, Tao verfasserin aut Enthalten in Sensors and actuators <Lausanne> / B Amsterdam [u.a.] : Elsevier Science, 1990 393 Online-Ressource (DE-627)306710358 (DE-600)1500731-5 (DE-576)082435855 0925-4005 nnns volume:393 GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 50.22 Sensorik VZ 35.07 Chemisches Labor chemische Methoden VZ AR 393 |
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10.1016/j.snb.2023.134194 doi (DE-627)ELV061866695 (ELSEVIER)S0925-4005(23)00909-7 DE-627 ger DE-627 rda eng 530 620 VZ 50.22 bkl 35.07 bkl He, Hongyan verfasserin aut Flexible humidity sensor based on crosslinked polyethyleneimine/tannic acid and porous carbonaceous interdigitated electrode 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier For their advantages of flexibility in nature, low cost, and ease of processing, polymers and polymer composites are considered to be ideal candidates for the development of wearable and flexible humidity sensors. Nevertheless, the commonly adopted polymer-based humidity sensing materials are usually subjected to long-term stability issue, due to a lack of chemically crosslinked network structure. Herein, we rely on the robust Michael addition reaction between polyethyleneimine (PEI) and tannic acid (TA) in aqueous solution for fabricating the chemically crosslinked TA-x-PEI based humidity sensors through a simple spray coating process. With assistance of direct laser writing carbonization (DLWc) technique, we demonstrate that the combination of TA-x-PEI with porous carbon interdigitated electrode (PC-IDE) allows for facile fabrication of high-performance flexible humidity sensors, which possess fast response and recovery performance (28 s/12 s), low hysteresis (2%) in the range of 35% RH - 90% RH, good long-term stability (impedance change < 2% over 30 days) and high sensitivity, as demonstrated by a comparison of key metrics with similar humidity sensors reported in the literature. SEM microscopy, Raman and FTIR spectroscopy, frequency-dependent impedance measurement, as well as equivalent circuit modeling have been performed to gain an in-depth understanding of the humidity sensing behavior and the underlying mechanism for the newly developed PC-IDE enabled TA-x-PEI based humidity sensors. Polyethyleneimine Tannic acid Crosslinking Humidity sensor Porous interdigitated electrode Direct laser writing carbonization Yao, Yanbo verfasserin aut Liu, Tao verfasserin aut Enthalten in Sensors and actuators <Lausanne> / B Amsterdam [u.a.] : Elsevier Science, 1990 393 Online-Ressource (DE-627)306710358 (DE-600)1500731-5 (DE-576)082435855 0925-4005 nnns volume:393 GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 50.22 Sensorik VZ 35.07 Chemisches Labor chemische Methoden VZ AR 393 |
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530 620 VZ 50.22 bkl 35.07 bkl Flexible humidity sensor based on crosslinked polyethyleneimine/tannic acid and porous carbonaceous interdigitated electrode Polyethyleneimine Tannic acid Crosslinking Humidity sensor Porous interdigitated electrode Direct laser writing carbonization |
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ddc 530 bkl 50.22 bkl 35.07 misc Polyethyleneimine misc Tannic acid misc Crosslinking misc Humidity sensor misc Porous interdigitated electrode misc Direct laser writing carbonization |
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ddc 530 bkl 50.22 bkl 35.07 misc Polyethyleneimine misc Tannic acid misc Crosslinking misc Humidity sensor misc Porous interdigitated electrode misc Direct laser writing carbonization |
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Flexible humidity sensor based on crosslinked polyethyleneimine/tannic acid and porous carbonaceous interdigitated electrode |
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Flexible humidity sensor based on crosslinked polyethyleneimine/tannic acid and porous carbonaceous interdigitated electrode |
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He, Hongyan |
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10.1016/j.snb.2023.134194 |
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flexible humidity sensor based on crosslinked polyethyleneimine/tannic acid and porous carbonaceous interdigitated electrode |
title_auth |
Flexible humidity sensor based on crosslinked polyethyleneimine/tannic acid and porous carbonaceous interdigitated electrode |
abstract |
For their advantages of flexibility in nature, low cost, and ease of processing, polymers and polymer composites are considered to be ideal candidates for the development of wearable and flexible humidity sensors. Nevertheless, the commonly adopted polymer-based humidity sensing materials are usually subjected to long-term stability issue, due to a lack of chemically crosslinked network structure. Herein, we rely on the robust Michael addition reaction between polyethyleneimine (PEI) and tannic acid (TA) in aqueous solution for fabricating the chemically crosslinked TA-x-PEI based humidity sensors through a simple spray coating process. With assistance of direct laser writing carbonization (DLWc) technique, we demonstrate that the combination of TA-x-PEI with porous carbon interdigitated electrode (PC-IDE) allows for facile fabrication of high-performance flexible humidity sensors, which possess fast response and recovery performance (28 s/12 s), low hysteresis (2%) in the range of 35% RH - 90% RH, good long-term stability (impedance change < 2% over 30 days) and high sensitivity, as demonstrated by a comparison of key metrics with similar humidity sensors reported in the literature. SEM microscopy, Raman and FTIR spectroscopy, frequency-dependent impedance measurement, as well as equivalent circuit modeling have been performed to gain an in-depth understanding of the humidity sensing behavior and the underlying mechanism for the newly developed PC-IDE enabled TA-x-PEI based humidity sensors. |
abstractGer |
For their advantages of flexibility in nature, low cost, and ease of processing, polymers and polymer composites are considered to be ideal candidates for the development of wearable and flexible humidity sensors. Nevertheless, the commonly adopted polymer-based humidity sensing materials are usually subjected to long-term stability issue, due to a lack of chemically crosslinked network structure. Herein, we rely on the robust Michael addition reaction between polyethyleneimine (PEI) and tannic acid (TA) in aqueous solution for fabricating the chemically crosslinked TA-x-PEI based humidity sensors through a simple spray coating process. With assistance of direct laser writing carbonization (DLWc) technique, we demonstrate that the combination of TA-x-PEI with porous carbon interdigitated electrode (PC-IDE) allows for facile fabrication of high-performance flexible humidity sensors, which possess fast response and recovery performance (28 s/12 s), low hysteresis (2%) in the range of 35% RH - 90% RH, good long-term stability (impedance change < 2% over 30 days) and high sensitivity, as demonstrated by a comparison of key metrics with similar humidity sensors reported in the literature. SEM microscopy, Raman and FTIR spectroscopy, frequency-dependent impedance measurement, as well as equivalent circuit modeling have been performed to gain an in-depth understanding of the humidity sensing behavior and the underlying mechanism for the newly developed PC-IDE enabled TA-x-PEI based humidity sensors. |
abstract_unstemmed |
For their advantages of flexibility in nature, low cost, and ease of processing, polymers and polymer composites are considered to be ideal candidates for the development of wearable and flexible humidity sensors. Nevertheless, the commonly adopted polymer-based humidity sensing materials are usually subjected to long-term stability issue, due to a lack of chemically crosslinked network structure. Herein, we rely on the robust Michael addition reaction between polyethyleneimine (PEI) and tannic acid (TA) in aqueous solution for fabricating the chemically crosslinked TA-x-PEI based humidity sensors through a simple spray coating process. With assistance of direct laser writing carbonization (DLWc) technique, we demonstrate that the combination of TA-x-PEI with porous carbon interdigitated electrode (PC-IDE) allows for facile fabrication of high-performance flexible humidity sensors, which possess fast response and recovery performance (28 s/12 s), low hysteresis (2%) in the range of 35% RH - 90% RH, good long-term stability (impedance change < 2% over 30 days) and high sensitivity, as demonstrated by a comparison of key metrics with similar humidity sensors reported in the literature. SEM microscopy, Raman and FTIR spectroscopy, frequency-dependent impedance measurement, as well as equivalent circuit modeling have been performed to gain an in-depth understanding of the humidity sensing behavior and the underlying mechanism for the newly developed PC-IDE enabled TA-x-PEI based humidity sensors. |
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