Potassium-regulated lead-free cesium copper iodide Cs3Cu2I5 perovskites with enhanced scintillation properties and their application in high-resolution X-ray imaging - 成果

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Potassium-regulated lead-free cesium copper iodide Cs₃Cu₂I₅ perovskites with enhanced scintillation properties and their application in high-resolution X-ray imaging

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成果类型：

期刊论文

作者：

Wu, Tong;Shi, Yun;Wu, Haodi;Chen, Mingyue;Ran, Hongbing;...

通讯作者：

Tang, YW;Shi, Y

作者机构：

[Chen, Mingyue; Tang, Yiwen; Ran, Hongbing; Wu, Tong; Tang, YW] Cent China Normal Univ, Coll Phys Sci & Technol, Wuhan 430079, Peoples R China.

[Chen, Junfeng; Shi, Y; Shi, Yun; Zheng, Jiaqian; Li, Xiang] Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 201899, Peoples R China.

[Chen, Junfeng; Shi, Y; Shi, Yun] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China.

[Wu, Haodi] Huazhong Univ Sci & Technol, WNLO, Wuhan 430074, Peoples R China.

[Wu, Haodi] Huazhong Univ Sci & Technol, Sch Opt & Elect Informat, Wuhan 430074, Peoples R China.

通讯机构：

[Shi, Y ; Tang, YW ] C

Cent China Normal Univ, Coll Phys Sci & Technol, Wuhan 430079, Peoples R China.

Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 201899, Peoples R China.

Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China.

语种：

英文

关键词：

Cesium compounds;Conversion efficiency;Excitons;Gadolinium compounds;Image resolution;Lead compounds;Metal halides;Perovskite;Polymethyl methacrylates;Scintillation;Scintillation counters;Semiconductor doping;Single crystals;X ray detectors;Copper halide;Exciton emission;Halide perovskites;High resolution;Lead-Free;Light yield;Non-toxic alternatives;Scintillation properties;Self trapped excitons;X-ray detections;Copper compounds

期刊：

Journal of Materials Chemistry C

ISSN：

2050-7526

年：

2024

卷：

期：

页码：

1002-1011

DOI：

10.1039/d3tc04078j

基金类别：

National Natural Science Foundation of China [51572102, 51972133, 62175249]; National Natural Science Foundation of China

机构署名：

本校为第一且通讯机构

院系归属：

物理科学与技术学院

摘要：

Ternary copper halides, such as Cs3Cu2I5, as an emerging class of nontoxic alternatives to lead halide perovskites, have drawn extensive attention in the X-ray detection field due to their efficient self-trapped exciton emissions. However, the light yield far below the theoretical limit seriously hinders the high-resolution X-ray detection application of copper halide scintillators. Herein, Cs3Cu2I5:K+ scintillation films and single crystals with enhanced photoluminescence (PL) and radiation luminescence (RL) were first obtained by adjusting th...

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Potassium-regulated lead-free cesium copper iodide Cs₃Cu₂I₅ perovskites with enhanced scintillation properties and their application in high-resolution X-ray imaging

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