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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201904405
|2 doi
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|a pubmed24n1004.xml
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|a (DE-627)NLM301323224
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|a (NLM)31523875
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
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|a Pan, Weicheng
|e verfasserin
|4 aut
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|a Hot-Pressed CsPbBr3 Quasi-Monocrystalline Film for Sensitive Direct X-ray Detection
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|c 2019
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 05.11.2019
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|a Date Revised 01.10.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a An X-ray detector with high sensitivity would be able to increase the generated signal and reduce the dose rate; thus, this type of detector is beneficial for applications such as medical imaging and product inspection. The inorganic lead halide perovskite CsPbBr3 possesses relatively larger density and a higher atomic number in contrast to its hybrid counterpart. Therefore, it is expected to provide high detection sensitivity for X-rays; however, it has rarely been studied as a direct X-ray detector. Here, a hot-pressing method is employed to fabricate thick quasi-monocrystalline CsPbBr3 films, and a record sensitivity of 55 684 µC Gyair -1 cm-2 is achieved, surpassing all other X-ray detectors (direct and indirect). The hot-pressing method is simple and produces thick quasi-monocrystalline CsPbBr3 films with uniform orientations. The high crystalline quality of the CsPbBr3 films and the formation of self-formed shallow bromide vacancy defects during the high-temperature process result in a large µτ product and, therefore, a high photoconductivity gain factor and high detection sensitivity. The detectors also exhibit relatively fast response speed, negligible baseline drift, and good stability, making a CsPbBr3 X-ray detector extremely competitive for high-contrast X-ray detections
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|a Journal Article
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|a CsPbBr3 thick films
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|a X-ray detectors
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|a high sensitivity
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|a hot-pressing method
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|a Yang, Bo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Niu, Guangda
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Xue, Kan-Hao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Du, Xinyuan
|e verfasserin
|4 aut
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1 |
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|a Yin, Lixiao
|e verfasserin
|4 aut
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1 |
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|a Zhang, Muyi
|e verfasserin
|4 aut
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| 700 |
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|a Wu, Haodi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Miao, Xiang-Shui
|e verfasserin
|4 aut
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| 700 |
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|a Tang, Jiang
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 31(2019), 44 vom: 13. Nov., Seite e1904405
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:31
|g year:2019
|g number:44
|g day:13
|g month:11
|g pages:e1904405
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|u http://dx.doi.org/10.1002/adma.201904405
|3 Volltext
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