In recent years, the performance of metal halide perovskite (MHP)-based detectors (photon, biomedical, and X-ray detection) has significantly improved, resulting in higher carrier mobilities, longer carrier diffusion lengths, and excellent absorption coefficients. However, the widespread adoption of halide perovskites has been hindered by issues related to their stability and toxicity. Various strategies have been adopted to address these challenges, focusing on enhancing ambient stability and reducing toxicity by encapsulating MHPs within stable and robust host materials, such as silicon compounds, metal oxides, chalcogenides, and lead-free perovskites. This review focuses on recent developments in hybrid nanostructure-based detectors (photon, biomedical, and X-ray), particularly core/shell architectures, and provides a comprehensive analysis of techniques for mitigating degradation due to light and oxygen exposure, UV irradiance, and thermal effects. This review enhances the understanding of current advancements in core/shell-based detectors.

中文翻译：

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金属卤化物钙钛矿核/壳异晶的前沿发展：从光电探测器到生物医学应用


近年来，基于金属卤化物钙钛矿 （MHP） 的探测器（光子、生物医学和 X 射线检测）的性能得到了显著提高，从而获得了更高的载流子迁移率、更长的载流子扩散长度和出色的吸收系数。然而，卤化物钙钛矿的广泛采用受到与其稳定性和毒性相关的问题的阻碍。已经采取了各种策略来应对这些挑战，重点是通过将 MHP 封装在稳定和坚固的宿主材料（如硅化合物、金属氧化物、硫属化物和无铅钙钛矿）中来提高环境稳定性和降低毒性。本文重点介绍了基于混合纳米结构的探测器（光子、生物医学和 X 射线）的最新发展，特别是核/壳结构，并全面分析了减轻由于光和氧气暴露、紫外线辐照度和热效应引起的降解的技术。这篇综述增强了对基于内核/壳层的探测器当前进展的理解。