journal article·2022-12-28

Visualization of X-rays with an Ultralow Detection Limit via Zero-Dimensional Perovskite Scintillators

Shu-Yi Yao, Hao Li, Min Zhou, Tian-Chi Wang, Xue Yu, Yin-Sheng Xu, Jian-Hong Yi, Jian-Bei Qiu, Jie Yu, Xu-Hui Xu

ACS Applied Materials & Interfaces· Volume 14· Issue 51
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Abstract

X-rays play an extremely significant role in medical diagnosis, safety testing, scientific research, and other practical applications. However, as the main sources of radioactive pollution, the hazard of X-rays to human health and the environment has been a major concern. Herein, the explored perovskite scintillator of Cs2Zr1–xPbxCl6 in this work exhibits an ultrahigh radioluminescence intensity owing to the enhanced X-ray absorption for the introduction of Pb2+ ions. The Cs2Zr1–xPbxCl6 crystals are demonstrated as efficient scintillators with a self-trapped exciton emission and extremely high steady-state light yield (∼101,944 photons meV–1). This fascinating scintillator provides a convenient visual tool for X-ray detection even for an indoor lighting environment, reaching a low detection limit of ∼14.2 nGy·s–1, which is about 1/387 of the typical medical imaging dose (5.5 μGy·s–1). Moreover, X-ray imaging with a high resolution of 16.6 lp·mm–1 is achieved with the as-explored Cs2Zr1–xPbxCl6 scintillator film. Herein, the Cs2Zr1–xPbxCl6 scintillator provides a feasible strategy for X-ray monitoring in the field of biomedicine, high-energy physics, national security, and other applications.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Perovskite Materials and Applications · Luminescence Properties of Advanced Materials · Radiation Detection and Scintillator Technologies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Faculty of Materials Science and Engineering, Key Laboratory of Advanced Materials of Yunnan Province, Kunming University of Science and Technology, Kunming 650093, Yunnan, P. R. China

College of Physical Science and Technology, Institute of Optoelectronic Technology, Yangzhou University, Yangzhou 225002, Jiangsu, P. R. China

School of Mechanical Engineering, Institute for Advanced Materials Deformation and Damage from Multi-Scale, Chengdu University, Chengdu 610106, Sichuan, P. R. China

State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, 430074 Wuhan, Hubei, P. R. China

Funding

Natural Science Foundation of Yunnan Province · State Key Laboratory of Silicate Materials for Architectures · Natural Science Foundation of Sichuan Province · Ten Thousand Talent Plans for Young Top-notch Talents of Yunnan Province · National Natural Science Foundation of China · Science and Technology Major Project of Yunnan Province

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