Realization of Passive X-Ray Detection with a Low Detection Limit in Dion-Jacobson Halide Hybrid Perovskite

被引：27

作者：

Fan, Yipeng ^{[1
,2
]}

Chen, Qin ^{[1
,2
]}

Li, Zhou ^{[1
,2
]}

Zhu, Tingting ^{[2
]}

Wu, Jianbo ^{[2
]}

You, Shihai ^{[2
]}

Zhang, Shuhua ^{[1
]}

Luo, Junhua ^{[1
,2
]}

Ji, Chengmin ^{[2
]}

机构：

[1] Guilin Univ Technol, Coll Chem & Bioengn, Guangxi Key Lab Electrochem & Magnetochem Funct Ma, Guilin 541004, Guangxi, Peoples R China

[2] Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China

来源：

SMALL | 2023年 / 19卷 / 45期

基金：

中国国家自然科学基金;

关键词：

bulk photovoltaic effect; DJ-type hybrid perovskites; low detection limit; passive X-ray detection; self-powered; SINGLE-CRYSTALS;

D O I：

10.1002/smll.202303814

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Halide hybrid perovskites are a kind of intriguing contenders for X-ray detection, and their low detection limits (LoDs) have played a crucial part in X-ray safety inspection and medical examination. However, there is still a significant challenge in manufacturing perovskite X-ray detectors with low LoDs. Herein, attributed to the bulk photovoltaic effect (BPVE) of a Dion-Jacobson (DJ) type 2D halide hybrid perovskite polar structure (3-methylaminopropylamine)PbBr4 (1), self-powered X-ray detection with low detection limit is successfully realized. Specifically, the crystal-based detector of 1 exhibits a low dark current at zero bias, which reduces the noise current (0.34 pA), leading to a low detection limit (58.3 nGy(air) s(-1)) which is two orders of magnitude lower than that of under external voltage bias. The combination of BPVE and LoDs of halide hybrid perovskite provides an efficient strategy to achieve passive X-ray detection with low doses.

引用

页数：8

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