4.8 Review

Halide Perovskite: A Promising Candidate for Next-Generation X-Ray Detectors

期刊

ADVANCED SCIENCE
卷 10, 期 1, 页码 -

出版社

WILEY
DOI: 10.1002/advs.202205536

关键词

detectors; halide; imaging; perovskites; X-ray

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Metal halide perovskite (HP) has emerged as a highly promising semiconductor material for applications in photovoltaic and photoelectric fields as well as X-ray detection. This review provides an overview of the working principles and modes of direct-type and indirect-type X-ray detectors, and discusses the suitability of HP for these two types of detection based on different perovskite structures. The authors also explore various preparation methods for HP and review recent progress in flexible X-ray detection using HP, highlighting their practicality and feasibility. The challenges and future research directions in the field of HP-based X-ray detection are also identified.
In the past decade, metal halide perovskite (HP) has become a superstar semiconductor material due to its great application potential in the photovoltaic and photoelectric fields. In fact, HP initially attracted worldwide attention because of its excellent photovoltaic efficiency. However, HP and its derivatives also show great promise in X-ray detection due to their strong X-ray absorption, high bulk resistivity, suitable optical bandgap, and compatibility with integrated circuits. In this review, the basic working principles and modes of both the direct-type and the indirect-type X-ray detectors are first summarized before discussing the applicability of HP for these two types of detection based on the pros and cons of different perovskites. Furthermore, the authors expand their view to different preparation methods developed for HP including single crystals and polycrystalline materials. Upon systematically analyzing their potential for X-ray detection and photoelectronic characteristics on the basis of different structures and dimensions (0D, 2D, and 3D), recent progress of HPs (mainly polycrystalline) applied to flexible X-ray detection are reviewed, and their practicability and feasibility are discussed. Finally, by reviewing the current research on HP-based X-ray detection, the challenges in this field are identified, and the main directions and prospects of future research are suggested.

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