Transparent Perovskite Wafers via Nanocrystals Ordered Coalescence Toward Sensitive and Stable X-Ray Detection and Imaging

Tan, Wenyan1,2,3,4; Xiao, Yingrui4; Zhou, Chao4,5; Jin, Xi1,2,4; Zhu, Siyuan4,6; Han, Mingyue4,5; Tang, Zhaoheng4,7; Zhang, Yu1,2,4; Su, Zhenhuang8; Chen, Tongsheng1,2; Chen, Qi3; Liang, Qijie4; Chen, Weiqiang1,2; Jiang, Yan3

2024-08-01

10.1002/adfm.202406839

ADVANCED FUNCTIONAL MATERIALS   影响因子和分区

1616-301X

1616-3028

["Metal halide perovskite wafers have shown significant potential in large-area X-ray detection and imaging. However, a distinct difference in optical transparency between state-of-the-art perovskite wafers and single crystals indicates the inferior crystal quality of perovskite wafers, which limits the performance and stability of wafer-based X-ray detectors. Here, nano-sized MAPbBr3 powders are utilized to fabricate dense perovskite wafers by low-temperature hot-pressing with high transparency above 60% within the 552-800 nm wavelength range. Adjacent nanocrystals assemble following the ordered coalescence mechanism, resulting in the exclusion of nanoscopic pores and crystallographic reorientation. The transparent MAPbBr3 wafer-based detectors achieve an impressively high X-ray sensitivity of 1.14 x 105 mu C Gyair-1 cm-2 and a low detection limit of 149 nGyair s-1, which is superior to opaque MAPbBr3 wafer detectors (5.64 x 104 mu C Gyair-1 cm-2 and 316.7 nGyair s-1) and comparable to MAPbBr3 single-crystal detectors. Moreover, the detectors demonstrate high uniformity and outstanding stability under continuous X-ray irradiation of a total dose of up to 5.9 Gyair, equaling to 29 500 times posteroanterior chest examinations. The high sensitivity and low detection limit of the detectors lead to clear X-ray imaging performance.","Nano-sized MAPbBr3 powders are utilized to fabricate large-area transparent MAPbBr3 wafers by a low-temperature hot-pressing method with high transparency similar to single crystals. Nanocrystals assemble following the ordered coalescence mechanism, facilitating the exclusion of nanoscopic pores and crystallographic reorientation. The transparent wafer X-ray detectors achieve an impressively high sensitivity of 1.14 x 105 mu C Gyair-1 cm-2 and outstanding irradiation stability. image"]

hot-pressing perovskite transparent wafers sensitivity stability X-ray detectors

SCI ; EI

英语

其他

National Natural Science Foundation of China["22279083","52202183","61905078"] ; Guangdong Basic and Applied Basic Research Foundation["2022B1515120006","2023B1515120041","2019A1515011136"]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:001283370800001

WILEY-V C H VERLAG GMBH

MATERIALS SCIENCE

Web of Science

1.South China Normal Univ, MOE Key Lab Laser Life Sci, Guangzhou 510631, Peoples R China
2.South China Normal Univ, Coll Biophoton, Guangdong Prov Key Lab Laser Life Sci, Guangzhou Key Lab Spectral Anal & Funct Probes, Guangzhou 510631, Peoples R China
3.Beijing Inst Technol, Sch Mat Sci & Engn, Beijing 100081, Peoples R China
4.Songshan Lake Mat Lab, Dongguan 523429, Guangdong, Peoples R China
5.Guangzhou Univ, Sch Phys & Mat Sci, Guangzhou 510006, Guangdong, Peoples R China
6.Liaoning Univ, Dept Phys, Shenyang 110036, Peoples R China
7.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
8.Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai Synchrotron Radiat Facil SSRF, 239 Zhangheng Rd, Shanghai 201204, Peoples R China

Tan, Wenyan,Xiao, Yingrui,Zhou, Chao,et al. Transparent Perovskite Wafers via Nanocrystals Ordered Coalescence Toward Sensitive and Stable X-Ray Detection and Imaging[J]. ADVANCED FUNCTIONAL MATERIALS,2024.

Tan, Wenyan.,Xiao, Yingrui.,Zhou, Chao.,Jin, Xi.,Zhu, Siyuan.,...&Jiang, Yan.(2024).Transparent Perovskite Wafers via Nanocrystals Ordered Coalescence Toward Sensitive and Stable X-Ray Detection and Imaging.ADVANCED FUNCTIONAL MATERIALS.

Tan, Wenyan,et al."Transparent Perovskite Wafers via Nanocrystals Ordered Coalescence Toward Sensitive and Stable X-Ray Detection and Imaging".ADVANCED FUNCTIONAL MATERIALS (2024).