journal article·2022-09-09

A Solar-Blind Perovskite Scintillator Realizing Portable X-ray Imaging

Hao Li, Yun Zhang, Min Zhou, Huaiyi Ding, Lei Zhao, Tingming Jiang, Hui Ying Yang, Feng Zhao, Weiqing Chen, Zhaowei Teng, Jianbei Qiu, Xue Yu, Yang Michael Yang, Xuhui Xu

ACS Energy Letters· Volume 7· Issue 9
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Abstract

A portable X-ray imaging technique involves conducting a quick response to a target outdoors, which is of great importance for active diagnosis and prompt treatment. However, realizing portable X-ray imaging in terms of equipment miniaturization, image visualization, and the crosstalk of external light signals remains a challenge. Herein, we demonstrate the feasibility of utilizing a lead-free perovskite scintillator (Cs2ZrCl6: Lu3+) for exploring portable X-ray imaging under sunlight without the need for complex imaging devices. Our experiments verify that the ultrabright radioluminescence (347 lm m–2, ∼20 times greater than that of the commercial single-crystal scintillator Bi4Ge3O12) originates from the effective activation of triplet excitons (dark state) of the as-developed scintillator, which is unresponsive to UV and visible photons. Moreover, brightening of dark-state excitons is accelerated via the manipulation of the introduced lanthanide ions. These results highlight the importance of harvesting and taking advantage of engineering dark-state excitons, which is incentive for future research in low-cost X-ray detection for portable, fast-response radiography.
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, China

School of Physics and Optoelectronic Technology, Baoji University of Arts and Sciences, Baoji 721016, Shannxi, China

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

Yunnan University, Kunming 650504, Yunnan, China

State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, International Research Center for Advanced Photonics, Zhejiang University, Hangzhou 310058, Zhejiang, China

Pillar of Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, Singapore 487372, Singapore

Institute for Advanced Study, Chengdu University, Chengdu 610106, China

Department of Orthopaedics, The First People’s Hospital of Yunnan Province, Kunming 650000, Yunnan, China

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

Funding

Natural Science Foundation of Yunnan Province · Natural Science Foundation of Sichuan Province · Ten Thousand Talent Plans for Young Top-notch Talents of Yunnan Province · National Natural Science Foundation of China · Yunnan Provincial Science and Technology Department

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