Strategic Review of Organic–Inorganic Perovskite Photodetectors

Metal halide perovskites have aroused worldwide efforts for developing optoelectronic devices due to their unique optical properties and low-cost simple fabrication process. In recent years, various perovskites-based miniaturized optical devices have been actively investigated due to their record-breaking efficiency in different fields, including environmental monitoring, remote sensing, biomedical imaging, and optical communications. In this review, a succinct and critical survey of recently discovered organic–inorganic perovskite photodetectors providing insights into their structural properties and key performance parameters is staged. First, key features of perovskites-based photodetectors emphasizing their optoelectronic and electrical properties are introduced. Then, the polarization-sensitive detection of metal halide perovskites using polarization-selective optical structures is discussed. The bandgap engineering for tailoring the properties of perovskite photodetectors by changing the chemical composition and material structures is also highlighted in this report. Finally, a perspective on future opportunities and current challenges for designing perovskite-based optoelectronic devices is presented.