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Halide perovskites in wide-spectrum photodetection
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DOI：10.1002/bkcs.70157.png)
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Abstract
En 中文
Metal-halide perovskites have emerged as promising semiconductors for wide-spectrum photodetection owing to their exceptional optoelectronic properties, tunable band gaps, and facile synthesis. Their strong light-matter interactions and long carrier diffusion lengths have enabled devices capable of detecting radiation across an extraordinary spectral range, from gamma-rays and x-rays to ultraviolet (UV), visible, and near-infrared (NIR) light. This review highlights key advancements in perovskite-based photodetectors (PPDs) and phototransistors, with an emphasis on high responsivity, detectivity, and ultrafast response times. We categorize device architectures by dimensionality (0D-3D) and detection regime, covering recent innovations such as flexible, lead-free, and self-powered PPDs. Special attention is given to novel chiral perovskites and polarization-sensitive photodetectors enabling circularly polarized light (CPL) discrimination. Furthermore, this work discusses the extension of perovskite detection to the single-photon level and evaluates underlying mechanisms for optical, ionizing, and near-infrared regimes. The review concludes with perspectives on challenges and future trends, emphasizing interface engineering, stability enhancement, and scalable fabrication toward next-generation optoelectronic imaging and communication systems.
Keywords:
halide perovskites
optoelectronics
photodetectors
phototransistors
polarization-resolved detection
x-ray and gamma detection
Journal
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2.2
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249
Citations:
4.6K
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