Dual-Mode 2D Perovskite X-Ray Detector With High Sensitivity and Spatial Resolution

被引：6

作者：

Di, Haipeng ^{[1
]}

Lu, Chang ^{[2
]}

Lei, Lin ^{[1
]}

Ren, Jiwei ^{[1
]}

Xiong, Ying ^{[3
]}

Zhao, Yiying ^{[1
]}

Yao, Guang ^{[2
]}

Liao, Feiyi ^{[3
]}

机构：

[1] China Acad Engn Phys, Inst Mat, Mianyang 621908, Peoples R China

[2] Univ Elect Sci & Technol China, Sch Mat & Energy, Chengdu 610054, Peoples R China

[3] Southwest Univ Sci & Technol, State Key Lab Environm friendly Energy Mat, Mianyang 621010, Sichuan, Peoples R China

来源：

IEEE ELECTRON DEVICE LETTERS | 2023年 / 44卷 / 06期

基金：

中国国家自然科学基金;

关键词：

2D perovskite; X-ray dual-mode detector; scintillator;

D O I：

10.1109/LED.2023.3271301

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Metal halide perovskites have been promising materials for radiation detectors. However, ion migration in perovskite semiconductors and thermal quenching in perovskite scintillators deteriorate the performance of direct and indirect X-ray detection. Here, we propose a dual-mode perovskite X-ray detector by transferring a two-dimensional (2D) (PEA)(2)PbI4 perovskite microsheet on Au interdigital electrodes. High-quality 2D perovskite (PEA)(2)PbI4 possesses ion migration suppression and quantum confinement effect, rendering the simultaneous operation of the X-ray detector in direct semiconductor mode and indirect scintillation mode. The detector shows a good sensitivity of 169.8 mu C Gy(air)(-1)cm(-2) and the spatial resolution is 13.8 lp mm(-1). Our work opens a new path for high sensitivity and spatial resolution 2D perovskites dual-mode radiation detectors.

引用

页码：955 / 958

页数：4

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