High-Performance Next-Generation Perovskite Nanocrystal Scintillator for Nondestructive X-Ray Imaging

被引：367

作者：

Heo, Jin Hyuck ^{[1
]}

Shin, Dong Hee ^{[1
]}

Park, Jin Kyoung ^{[1
]}

Kim, Do Hun ^{[1
]}

Lee, Sang Jin ^{[1
]}

Im, Sang Hyuk ^{[1
]}

机构：

[1] Korea Univ, Dept Chem & Biol Engn, 145 Anam Ro, Seoul 17104, South Korea

来源：

ADVANCED MATERIALS | 2018年 / 30卷 / 40期

基金：

新加坡国家研究基金会;

关键词：

cesium lead tribromide; nanocrystals; perovskite; scintillators; X-ray imaging; LIGHT YIELD; DETECTORS; EMISSION; CSPBBR3; CSI(TL);

D O I：

10.1002/adma.201801743

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Readily commercializable and cost-effective next-generation CsPbBr3 perovskite nanocrystals (PNCs) based X-ray detectors are demonstrated. The PNCs-based X-ray detector exhibits higher spatial resolution (9.8 lp mm(-1) at modulation transfer function (MTF) = 0.2 and 12.5-8.9 lp mm(-1) for a linear line chart), faster response time (approximate to 200 ns), and comparable stability (>40 Gy(air) s(-1) of X-ray exposure) compared with the commercialized terbium-doped gadolinium oxysulfide (GOS)-based detectors (spatial resolution = 6.2 lp mm(-1) at MTF = 0.2 and 6.3 lp mm(-1) for a linear line chart, response time = approximate to 1200 ns) because the PNCs-based scintillator has approximate to 5.6-fold faster average photoluminescence lifetime and stronger emission than the GOS-based one.

引用

页数：6

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