Light Emission Properties of Thermally Evaporated CH<sub<3</sub<NH<sub<3</sub<PbBr<sub<3</sub< Perovskite from Nano- to Macro-Scale: Role of Free and Localized Excitons
Over the past decade, interest about metal halide perovskites has rapidly increased, as they can find wide application in optoelectronic devices. Nevertheless, although thermal evaporation is crucial for the development and engineering of such devices based on multilayer structures, the optical prop...
Ausführliche Beschreibung
Autor*in: |
Claudia Triolo [verfasserIn] Maria Luisa De Giorgi [verfasserIn] Antonella Lorusso [verfasserIn] Arianna Cretì [verfasserIn] Saveria Santangelo [verfasserIn] Mauro Lomascolo [verfasserIn] Marco Anni [verfasserIn] Marco Mazzeo [verfasserIn] Salvatore Patané [verfasserIn] |
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E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2022 |
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Übergeordnetes Werk: |
In: Nanomaterials - MDPI AG, 2012, 12(2022), 2, p 211 |
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Übergeordnetes Werk: |
volume:12 ; year:2022 ; number:2, p 211 |
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DOI / URN: |
10.3390/nano12020211 |
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Katalog-ID: |
DOAJ086021826 |
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10.3390/nano12020211 doi (DE-627)DOAJ086021826 (DE-599)DOAJ4dcdb20ae1cc4b4d9d31cae10dfa0252 DE-627 ger DE-627 rakwb eng QD1-999 Claudia Triolo verfasserin aut Light Emission Properties of Thermally Evaporated CH<sub<3</sub<NH<sub<3</sub<PbBr<sub<3</sub< Perovskite from Nano- to Macro-Scale: Role of Free and Localized Excitons 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Over the past decade, interest about metal halide perovskites has rapidly increased, as they can find wide application in optoelectronic devices. Nevertheless, although thermal evaporation is crucial for the development and engineering of such devices based on multilayer structures, the optical properties of thermally deposited perovskite layers (spontaneous and amplified spontaneous emission) have been poorly investigated. This paper is a study from a nano- to micro- and macro-scale about the role of light-emitting species (namely free carriers and excitons) and trap states in the spontaneous emission of thermally evaporated thin layers of CH<sub<3</sub<NH<sub<3</sub<PbBr<sub<3</sub< perovskite after wet air UV light trap passivation. The map of light emission from grains, carried out by SNOM at the nanoscale and by micro-PL techniques, clearly indicates that free and localized excitons (EXs) are the dominant light-emitting species, the localized excitons being the dominant ones in the presence of crystallites. These species also have a key role in the amplified spontaneous emission (ASE) process: for higher excitation densities, the relative contribution of localized EXs basically remains constant, while a clear competition between ASE and free EXs spontaneous emission is present, which suggests that ASE is due to stimulated emission from the free EXs. perovskite thermal evaporation trap states free excitons localized excitons PL emission Chemistry Maria Luisa De Giorgi verfasserin aut Antonella Lorusso verfasserin aut Arianna Cretì verfasserin aut Saveria Santangelo verfasserin aut Mauro Lomascolo verfasserin aut Marco Anni verfasserin aut Marco Mazzeo verfasserin aut Salvatore Patané verfasserin aut In Nanomaterials MDPI AG, 2012 12(2022), 2, p 211 (DE-627)718627199 (DE-600)2662255-5 20794991 nnns volume:12 year:2022 number:2, p 211 https://doi.org/10.3390/nano12020211 kostenfrei https://doaj.org/article/4dcdb20ae1cc4b4d9d31cae10dfa0252 kostenfrei https://www.mdpi.com/2079-4991/12/2/211 kostenfrei https://doaj.org/toc/2079-4991 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ 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 12 2022 2, p 211 |
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10.3390/nano12020211 doi (DE-627)DOAJ086021826 (DE-599)DOAJ4dcdb20ae1cc4b4d9d31cae10dfa0252 DE-627 ger DE-627 rakwb eng QD1-999 Claudia Triolo verfasserin aut Light Emission Properties of Thermally Evaporated CH<sub<3</sub<NH<sub<3</sub<PbBr<sub<3</sub< Perovskite from Nano- to Macro-Scale: Role of Free and Localized Excitons 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Over the past decade, interest about metal halide perovskites has rapidly increased, as they can find wide application in optoelectronic devices. Nevertheless, although thermal evaporation is crucial for the development and engineering of such devices based on multilayer structures, the optical properties of thermally deposited perovskite layers (spontaneous and amplified spontaneous emission) have been poorly investigated. This paper is a study from a nano- to micro- and macro-scale about the role of light-emitting species (namely free carriers and excitons) and trap states in the spontaneous emission of thermally evaporated thin layers of CH<sub<3</sub<NH<sub<3</sub<PbBr<sub<3</sub< perovskite after wet air UV light trap passivation. The map of light emission from grains, carried out by SNOM at the nanoscale and by micro-PL techniques, clearly indicates that free and localized excitons (EXs) are the dominant light-emitting species, the localized excitons being the dominant ones in the presence of crystallites. These species also have a key role in the amplified spontaneous emission (ASE) process: for higher excitation densities, the relative contribution of localized EXs basically remains constant, while a clear competition between ASE and free EXs spontaneous emission is present, which suggests that ASE is due to stimulated emission from the free EXs. perovskite thermal evaporation trap states free excitons localized excitons PL emission Chemistry Maria Luisa De Giorgi verfasserin aut Antonella Lorusso verfasserin aut Arianna Cretì verfasserin aut Saveria Santangelo verfasserin aut Mauro Lomascolo verfasserin aut Marco Anni verfasserin aut Marco Mazzeo verfasserin aut Salvatore Patané verfasserin aut In Nanomaterials MDPI AG, 2012 12(2022), 2, p 211 (DE-627)718627199 (DE-600)2662255-5 20794991 nnns volume:12 year:2022 number:2, p 211 https://doi.org/10.3390/nano12020211 kostenfrei https://doaj.org/article/4dcdb20ae1cc4b4d9d31cae10dfa0252 kostenfrei https://www.mdpi.com/2079-4991/12/2/211 kostenfrei https://doaj.org/toc/2079-4991 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ 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 12 2022 2, p 211 |
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Claudia Triolo @@aut@@ Maria Luisa De Giorgi @@aut@@ Antonella Lorusso @@aut@@ Arianna Cretì @@aut@@ Saveria Santangelo @@aut@@ Mauro Lomascolo @@aut@@ Marco Anni @@aut@@ Marco Mazzeo @@aut@@ Salvatore Patané @@aut@@ |
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Light Emission Properties of Thermally Evaporated CH<sub<3</sub<NH<sub<3</sub<PbBr<sub<3</sub< Perovskite from Nano- to Macro-Scale: Role of Free and Localized Excitons |
abstract |
Over the past decade, interest about metal halide perovskites has rapidly increased, as they can find wide application in optoelectronic devices. Nevertheless, although thermal evaporation is crucial for the development and engineering of such devices based on multilayer structures, the optical properties of thermally deposited perovskite layers (spontaneous and amplified spontaneous emission) have been poorly investigated. This paper is a study from a nano- to micro- and macro-scale about the role of light-emitting species (namely free carriers and excitons) and trap states in the spontaneous emission of thermally evaporated thin layers of CH<sub<3</sub<NH<sub<3</sub<PbBr<sub<3</sub< perovskite after wet air UV light trap passivation. The map of light emission from grains, carried out by SNOM at the nanoscale and by micro-PL techniques, clearly indicates that free and localized excitons (EXs) are the dominant light-emitting species, the localized excitons being the dominant ones in the presence of crystallites. These species also have a key role in the amplified spontaneous emission (ASE) process: for higher excitation densities, the relative contribution of localized EXs basically remains constant, while a clear competition between ASE and free EXs spontaneous emission is present, which suggests that ASE is due to stimulated emission from the free EXs. |
abstractGer |
Over the past decade, interest about metal halide perovskites has rapidly increased, as they can find wide application in optoelectronic devices. Nevertheless, although thermal evaporation is crucial for the development and engineering of such devices based on multilayer structures, the optical properties of thermally deposited perovskite layers (spontaneous and amplified spontaneous emission) have been poorly investigated. This paper is a study from a nano- to micro- and macro-scale about the role of light-emitting species (namely free carriers and excitons) and trap states in the spontaneous emission of thermally evaporated thin layers of CH<sub<3</sub<NH<sub<3</sub<PbBr<sub<3</sub< perovskite after wet air UV light trap passivation. The map of light emission from grains, carried out by SNOM at the nanoscale and by micro-PL techniques, clearly indicates that free and localized excitons (EXs) are the dominant light-emitting species, the localized excitons being the dominant ones in the presence of crystallites. These species also have a key role in the amplified spontaneous emission (ASE) process: for higher excitation densities, the relative contribution of localized EXs basically remains constant, while a clear competition between ASE and free EXs spontaneous emission is present, which suggests that ASE is due to stimulated emission from the free EXs. |
abstract_unstemmed |
Over the past decade, interest about metal halide perovskites has rapidly increased, as they can find wide application in optoelectronic devices. Nevertheless, although thermal evaporation is crucial for the development and engineering of such devices based on multilayer structures, the optical properties of thermally deposited perovskite layers (spontaneous and amplified spontaneous emission) have been poorly investigated. This paper is a study from a nano- to micro- and macro-scale about the role of light-emitting species (namely free carriers and excitons) and trap states in the spontaneous emission of thermally evaporated thin layers of CH<sub<3</sub<NH<sub<3</sub<PbBr<sub<3</sub< perovskite after wet air UV light trap passivation. The map of light emission from grains, carried out by SNOM at the nanoscale and by micro-PL techniques, clearly indicates that free and localized excitons (EXs) are the dominant light-emitting species, the localized excitons being the dominant ones in the presence of crystallites. These species also have a key role in the amplified spontaneous emission (ASE) process: for higher excitation densities, the relative contribution of localized EXs basically remains constant, while a clear competition between ASE and free EXs spontaneous emission is present, which suggests that ASE is due to stimulated emission from the free EXs. |
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Light Emission Properties of Thermally Evaporated CH<sub<3</sub<NH<sub<3</sub<PbBr<sub<3</sub< Perovskite from Nano- to Macro-Scale: Role of Free and Localized Excitons |
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https://doi.org/10.3390/nano12020211 https://doaj.org/article/4dcdb20ae1cc4b4d9d31cae10dfa0252 https://www.mdpi.com/2079-4991/12/2/211 https://doaj.org/toc/2079-4991 |
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<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">DOAJ086021826</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20240414211017.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">230311s2022 xx |||||o 00| ||eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.3390/nano12020211</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)DOAJ086021826</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-599)DOAJ4dcdb20ae1cc4b4d9d31cae10dfa0252</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">Claudia Triolo</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Light Emission Properties of Thermally Evaporated CH<sub<3</sub<NH<sub<3</sub<PbBr<sub<3</sub< Perovskite from Nano- to Macro-Scale: Role of Free and Localized Excitons</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2022</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">Over the past decade, interest about metal halide perovskites has rapidly increased, as they can find wide application in optoelectronic devices. 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These species also have a key role in the amplified spontaneous emission (ASE) process: for higher excitation densities, the relative contribution of localized EXs basically remains constant, while a clear competition between ASE and free EXs spontaneous emission is present, which suggests that ASE is due to stimulated emission from the free EXs.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">perovskite</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">thermal evaporation</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">trap states</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">free excitons</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">localized excitons</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">PL emission</subfield></datafield><datafield tag="653" ind1=" " ind2="0"><subfield 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