Amine Gas‐Induced Reversible Optical Bleaching of Bismuth‐Based Lead‐Free Perovskite Thin Films
Abstract Reversible optical property changes in lead‐free perovskites have recently received great interest due to their potential applications in smart windows, sensors, data encryption, and various on‐demand devices. However, it is challenging to achieve remarkable color changes in their thin film...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2024-01-01
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| Series: | Advanced Science |
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| Online Access: | https://doi.org/10.1002/advs.202306391 |
| _version_ | 1797262321404346368 |
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| author | Fuxiang Ji Bin Zhang Weimin M Chen Irina A Buyanova Feng Wang Gerrit Boschloo |
| author_facet | Fuxiang Ji Bin Zhang Weimin M Chen Irina A Buyanova Feng Wang Gerrit Boschloo |
| author_sort | Fuxiang Ji |
| collection | DOAJ |
| description | Abstract Reversible optical property changes in lead‐free perovskites have recently received great interest due to their potential applications in smart windows, sensors, data encryption, and various on‐demand devices. However, it is challenging to achieve remarkable color changes in their thin films. Here, methylamine gas (CH3NH2, MA0) induced switchable optical bleaching of bismuth (Bi)‐based perovskite films is demonstrated for the first time. By exposure to an MA0 atmosphere, the color of Cs2AgBiBr6 (CABB) films changes from yellow to transparent, and the color of Cs3Bi2I9 (CBI) films changes from dark red to transparent. More interestingly, the underlying reason is found to be the interactions between MA0 and Bi3+ with the formation of an amorphous liquefied transparent intermediate phase, which is different from that of lead‐based perovskite systems. Moreover, the generality of this approach is demonstrated with other amine gases, including ethylamine (C2H5NH2, EA0) and butylamine (CH3(CH2)3NH2, BA0), and another compound, Cs3Sb2I9, by observing a similar reversible optical bleaching phenomenon. The potential for the application of CABB and CBI films in switchable smart windows is investigated. This study provides valuable insights into the interactions between amine gases and lead‐free perovskites, opening up new possibilities for high‐efficiency optoelectronic and stimuli‐responsive applications of these emerging Bi‐based materials. |
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| institution | Directory Open Access Journal |
| issn | 2198-3844 |
| language | English |
| last_indexed | 2024-04-24T23:55:15Z |
| publishDate | 2024-01-01 |
| publisher | Wiley |
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| series | Advanced Science |
| spelling | doaj.art-8bf00afbe4484ccbba32fa2ae089bcb72024-03-14T14:01:03ZengWileyAdvanced Science2198-38442024-01-01114n/an/a10.1002/advs.202306391Amine Gas‐Induced Reversible Optical Bleaching of Bismuth‐Based Lead‐Free Perovskite Thin FilmsFuxiang Ji0Bin Zhang1Weimin M Chen2Irina A Buyanova3Feng Wang4Gerrit Boschloo5Department of Chemistry‐Ångström Laboratory Physical Chemistry Uppsala University Uppsala SE‐751 20 SwedenDepartment of Physics Chemistry and Biology (IFM) Linköping University Linköping SE‐58 183 SwedenDepartment of Physics Chemistry and Biology (IFM) Linköping University Linköping SE‐58 183 SwedenDepartment of Physics Chemistry and Biology (IFM) Linköping University Linköping SE‐58 183 SwedenDepartment of Physics Chemistry and Biology (IFM) Linköping University Linköping SE‐58 183 SwedenDepartment of Chemistry‐Ångström Laboratory Physical Chemistry Uppsala University Uppsala SE‐751 20 SwedenAbstract Reversible optical property changes in lead‐free perovskites have recently received great interest due to their potential applications in smart windows, sensors, data encryption, and various on‐demand devices. However, it is challenging to achieve remarkable color changes in their thin films. Here, methylamine gas (CH3NH2, MA0) induced switchable optical bleaching of bismuth (Bi)‐based perovskite films is demonstrated for the first time. By exposure to an MA0 atmosphere, the color of Cs2AgBiBr6 (CABB) films changes from yellow to transparent, and the color of Cs3Bi2I9 (CBI) films changes from dark red to transparent. More interestingly, the underlying reason is found to be the interactions between MA0 and Bi3+ with the formation of an amorphous liquefied transparent intermediate phase, which is different from that of lead‐based perovskite systems. Moreover, the generality of this approach is demonstrated with other amine gases, including ethylamine (C2H5NH2, EA0) and butylamine (CH3(CH2)3NH2, BA0), and another compound, Cs3Sb2I9, by observing a similar reversible optical bleaching phenomenon. The potential for the application of CABB and CBI films in switchable smart windows is investigated. This study provides valuable insights into the interactions between amine gases and lead‐free perovskites, opening up new possibilities for high‐efficiency optoelectronic and stimuli‐responsive applications of these emerging Bi‐based materials.https://doi.org/10.1002/advs.202306391Cs2AgBiBr6Cs3Bi2I9lead‐free perovskitesmethylamine gasoptical bleachingsmart windows |
| spellingShingle | Fuxiang Ji Bin Zhang Weimin M Chen Irina A Buyanova Feng Wang Gerrit Boschloo Amine Gas‐Induced Reversible Optical Bleaching of Bismuth‐Based Lead‐Free Perovskite Thin Films Advanced Science Cs2AgBiBr6 Cs3Bi2I9 lead‐free perovskites methylamine gas optical bleaching smart windows |
| title | Amine Gas‐Induced Reversible Optical Bleaching of Bismuth‐Based Lead‐Free Perovskite Thin Films |
| title_full | Amine Gas‐Induced Reversible Optical Bleaching of Bismuth‐Based Lead‐Free Perovskite Thin Films |
| title_fullStr | Amine Gas‐Induced Reversible Optical Bleaching of Bismuth‐Based Lead‐Free Perovskite Thin Films |
| title_full_unstemmed | Amine Gas‐Induced Reversible Optical Bleaching of Bismuth‐Based Lead‐Free Perovskite Thin Films |
| title_short | Amine Gas‐Induced Reversible Optical Bleaching of Bismuth‐Based Lead‐Free Perovskite Thin Films |
| title_sort | amine gas induced reversible optical bleaching of bismuth based lead free perovskite thin films |
| topic | Cs2AgBiBr6 Cs3Bi2I9 lead‐free perovskites methylamine gas optical bleaching smart windows |
| url | https://doi.org/10.1002/advs.202306391 |
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