Mechanochemical Synthesis of High-Entropy Perovskite toward Highly Sensitive and Stable X-ray Flat-Panel Detectors
© 2023 Wiley-VCH GmbH..
Perovskites are attracting attention for optoelectronic devices. Despite their promise, the large-scale synthesis of perovskite materials with exact stoichiometry, especially high-entropy perovskites, has been a major challenge. Moreover, the difficulty in stoichiometry control also hinders the development of perovskite X-ray flat-panel detectors. Previous reports all employed simple MAPbI3 as the active layer, while the performance still falls short of optimized single-crystal-based single-pixel detectors. Herein, a scalable and universal strategy of a mechanochemical method is adopted to synthesize stoichiometric high-entropy perovskite powders with high quality and high quantity (>1 kg per batch). By utilizing these stoichiometric perovskites, the first FA0.9 MA0.05 Cs0.05 Pb(I0.9 Br0.1 )3 -based X-ray flat-panel detector with low trap density and large mobility-lifetime product (7.5 × 10-3 cm2 V-1 ) is reported. The assembled panel detector exhibits close-to-single-crystal performance (high sensitivity of 2.1 × 104 µC Gyair -1 cm-2 and ultralow detection limit of 1.25 nGyair s-1 ), high spatial resolution of 0.46 lp/pixel, as well as excellent thermal robustness under industrial standards. The high performance in the high-entropy perovskite-based X-ray FPDs has the potential to facilitate the development of new-generation X-ray-detection systems.
Medienart: |
E-Artikel |
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Erscheinungsjahr: |
2023 |
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Erschienen: |
2023 |
Enthalten in: |
Zur Gesamtaufnahme - volume:35 |
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Enthalten in: |
Advanced materials (Deerfield Beach, Fla.) - 35(2023), 29 vom: 18. Juli, Seite e2301406 |
Sprache: |
Englisch |
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Beteiligte Personen: |
Wu, Haodi [VerfasserIn] |
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Links: |
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Themen: |
High-entropy perovskites |
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Anmerkungen: |
Date Revised 20.07.2023 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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doi: |
10.1002/adma.202301406 |
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funding: |
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Förderinstitution / Projekttitel: |
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PPN (Katalog-ID): |
NLM355270307 |
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520 | |a Perovskites are attracting attention for optoelectronic devices. Despite their promise, the large-scale synthesis of perovskite materials with exact stoichiometry, especially high-entropy perovskites, has been a major challenge. Moreover, the difficulty in stoichiometry control also hinders the development of perovskite X-ray flat-panel detectors. Previous reports all employed simple MAPbI3 as the active layer, while the performance still falls short of optimized single-crystal-based single-pixel detectors. Herein, a scalable and universal strategy of a mechanochemical method is adopted to synthesize stoichiometric high-entropy perovskite powders with high quality and high quantity (>1 kg per batch). By utilizing these stoichiometric perovskites, the first FA0.9 MA0.05 Cs0.05 Pb(I0.9 Br0.1 )3 -based X-ray flat-panel detector with low trap density and large mobility-lifetime product (7.5 × 10-3 cm2 V-1 ) is reported. The assembled panel detector exhibits close-to-single-crystal performance (high sensitivity of 2.1 × 104 µC Gyair -1 cm-2 and ultralow detection limit of 1.25 nGyair s-1 ), high spatial resolution of 0.46 lp/pixel, as well as excellent thermal robustness under industrial standards. The high performance in the high-entropy perovskite-based X-ray FPDs has the potential to facilitate the development of new-generation X-ray-detection systems | ||
650 | 4 | |a Journal Article | |
650 | 4 | |a X-ray flat-panel detectors | |
650 | 4 | |a high-entropy perovskites | |
650 | 4 | |a mechanochemistry | |
700 | 1 | |a Chen, Xu |e verfasserin |4 aut | |
700 | 1 | |a Song, Zihao |e verfasserin |4 aut | |
700 | 1 | |a Zhang, Ao |e verfasserin |4 aut | |
700 | 1 | |a Du, Xinyuan |e verfasserin |4 aut | |
700 | 1 | |a He, Xin |e verfasserin |4 aut | |
700 | 1 | |a Wang, Hanqi |e verfasserin |4 aut | |
700 | 1 | |a Xu, Ling |e verfasserin |4 aut | |
700 | 1 | |a Zheng, Zhiping |e verfasserin |4 aut | |
700 | 1 | |a Niu, Guangda |e verfasserin |4 aut | |
700 | 1 | |a Tang, Jiang |e verfasserin |4 aut | |
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