Thin MAPb0.5Sn0.5I3 Perovskite Single Crystals for Sensitive Infrared Light Detection
Metal halide perovskite single-crystal detectors have attracted increasing attention due to the advantages of low noise, high sensitivity, and fast response. However, the narrow photoresponse range of widely investigated lead-based perovskite single crystals limit their application in near-infrared...
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Frontiers Media S.A.
2022-01-01
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| Series: | Frontiers in Chemistry |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fchem.2021.821699/full |
| _version_ | 1818754615610441728 |
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| author | Jinming Wu Yongqiang Zhang Shuang Yang Zhaolai Chen Zhaolai Chen Wei Zhu |
| author_facet | Jinming Wu Yongqiang Zhang Shuang Yang Zhaolai Chen Zhaolai Chen Wei Zhu |
| author_sort | Jinming Wu |
| collection | DOAJ |
| description | Metal halide perovskite single-crystal detectors have attracted increasing attention due to the advantages of low noise, high sensitivity, and fast response. However, the narrow photoresponse range of widely investigated lead-based perovskite single crystals limit their application in near-infrared (NIR) detection. In this work, tin (Sn) is incorporated into methylammonium lead iodide (MAPbI3) single crystals to extend the absorption range to around 950 nm. Using a space-confined strategy, MAPb0.5Sn0.5I3 single-crystal thin films with a thickness of 15 μm is obtained, which is applied for sensitive NIR detection. The as-fabricated detectors show a responsivity of 0.514 A/W and a specific detectivity of 1.4974×1011 cmHz1/2/W under 905 nm light illumination and –1V. Moreover, the NIR detectors exhibit good operational stability (∼30000 s), which can be attributed to the low trap density and good stability of perovskite single crystals. This work demonstrates an effective way for sensitive NIR detection. |
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| id | doaj.art-4d64065a6bff40fa9020ceb3bae5a59e |
| institution | Directory Open Access Journal |
| issn | 2296-2646 |
| language | English |
| last_indexed | 2024-12-18T05:26:04Z |
| publishDate | 2022-01-01 |
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| series | Frontiers in Chemistry |
| spelling | doaj.art-4d64065a6bff40fa9020ceb3bae5a59e2022-12-21T21:19:33ZengFrontiers Media S.A.Frontiers in Chemistry2296-26462022-01-01910.3389/fchem.2021.821699821699Thin MAPb0.5Sn0.5I3 Perovskite Single Crystals for Sensitive Infrared Light DetectionJinming Wu0Yongqiang Zhang1Shuang Yang2Zhaolai Chen3Zhaolai Chen4Wei Zhu5State Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University, Jinan, ChinaLinYi Ecological Environmental Bureau, LinYi, ChinaSunzhou Research Institute, Shandong University, Suzhou, ChinaState Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University, Jinan, ChinaSunzhou Research Institute, Shandong University, Suzhou, ChinaInstitute of Radiation Medicine, Shandong Academy of Medical Sciences, Shandong First Medical University, Jinan, ChinaMetal halide perovskite single-crystal detectors have attracted increasing attention due to the advantages of low noise, high sensitivity, and fast response. However, the narrow photoresponse range of widely investigated lead-based perovskite single crystals limit their application in near-infrared (NIR) detection. In this work, tin (Sn) is incorporated into methylammonium lead iodide (MAPbI3) single crystals to extend the absorption range to around 950 nm. Using a space-confined strategy, MAPb0.5Sn0.5I3 single-crystal thin films with a thickness of 15 μm is obtained, which is applied for sensitive NIR detection. The as-fabricated detectors show a responsivity of 0.514 A/W and a specific detectivity of 1.4974×1011 cmHz1/2/W under 905 nm light illumination and –1V. Moreover, the NIR detectors exhibit good operational stability (∼30000 s), which can be attributed to the low trap density and good stability of perovskite single crystals. This work demonstrates an effective way for sensitive NIR detection.https://www.frontiersin.org/articles/10.3389/fchem.2021.821699/fullperovskitesingle crystalnear-infrared detectionlow toxicityoperational stability |
| spellingShingle | Jinming Wu Yongqiang Zhang Shuang Yang Zhaolai Chen Zhaolai Chen Wei Zhu Thin MAPb0.5Sn0.5I3 Perovskite Single Crystals for Sensitive Infrared Light Detection Frontiers in Chemistry perovskite single crystal near-infrared detection low toxicity operational stability |
| title | Thin MAPb0.5Sn0.5I3 Perovskite Single Crystals for Sensitive Infrared Light Detection |
| title_full | Thin MAPb0.5Sn0.5I3 Perovskite Single Crystals for Sensitive Infrared Light Detection |
| title_fullStr | Thin MAPb0.5Sn0.5I3 Perovskite Single Crystals for Sensitive Infrared Light Detection |
| title_full_unstemmed | Thin MAPb0.5Sn0.5I3 Perovskite Single Crystals for Sensitive Infrared Light Detection |
| title_short | Thin MAPb0.5Sn0.5I3 Perovskite Single Crystals for Sensitive Infrared Light Detection |
| title_sort | thin mapb0 5sn0 5i3 perovskite single crystals for sensitive infrared light detection |
| topic | perovskite single crystal near-infrared detection low toxicity operational stability |
| url | https://www.frontiersin.org/articles/10.3389/fchem.2021.821699/full |
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