Metal halide perovskite nanocrystals for x-ray scintillators

IF 2.5 4区 材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY
Handong Jin, Shihe Yang, M. Iqbal, Yu-Jia Zeng
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引用次数: 3

Abstract

Radiation detection, converting high-energy (keV) photons to lower energy (1.7–3 eV) photons, is of great importance in various fields, including medical diagnostics, quality inspection, and security checking. High-resolution scintillation imaging based on lead halide perovskite nanocrystals is very promising for these applications owing to their high absorption cross-section for x-rays, fast decay time, room temperature fabrication, tunable bandgap, low trap density, and near-unity photoluminescence quantum yield. Although considerable achievements have been made, challenges remain for future industrialization. Herein, the progress of scintillators based on lead halide perovskite nanocrystals is reviewed, including their working mechanisms, key parameters, and the relationship between growth conditions and performance. An overview of the current state in this promising research area toward high-performance x-ray scintillators is provided, along with a look at some of the challenges and opportunities that lie ahead.
用于x射线闪烁体的金属卤化物钙钛矿纳米晶体
辐射探测是将高能光子(keV)转换为低能量光子(1.7-3 eV),在医疗诊断、质量检测和安全检查等各个领域都具有重要意义。基于卤化铅钙钛矿纳米晶体的高分辨率闪烁成像由于其对x射线的高吸收横截面,快速衰减时间,室温制造,可调谐带隙,低陷阱密度和接近统一的光致发光量子产率,在这些应用中非常有前途。虽然取得了相当大的成就,但未来的工业化仍面临挑战。本文综述了基于卤化铅钙钛矿纳米晶体的闪烁体的研究进展,包括其工作机理、关键参数以及生长条件与性能的关系。概述了高性能x射线闪烁体这一有前途的研究领域的现状,并展望了未来的一些挑战和机遇。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Nano Futures
Nano Futures Chemistry-General Chemistry
CiteScore
4.30
自引率
0.00%
发文量
35
期刊介绍: Nano Futures mission is to reflect the diverse and multidisciplinary field of nanoscience and nanotechnology that now brings together researchers from across physics, chemistry, biomedicine, materials science, engineering and industry.
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