In recent years, taking advantages of high light absorption coefficients, long charge carrier diffusion lengths and intense photoluminescence, halide perovskites have attracted a great deal of interest in developing high-performance optoelectronic devices including solar cells, light-emitting diodes, photodetectors, transistors, lasers, and so on. Especially, the excellent combination of effective light absorption with tailorable absorption spectrum and high charge carrier mobility in a broadband range makes perovskite-based photodetectors different from traditional photodetectors made of inorganic semiconductors such as GaN, Si, and InGaAs. According to the recent reports, perovskites are promising to greatly improve responsivity, detectivity, noise equivalent power, linear dynamic range, and response speed of photodetectors. Here, we summarize the recent advancements in organic–inorganic hybrid perovskite-based photodetectors in terms of the progress in various low-dimension perovskites, and the recent effective approaches to enhance the performance of perovskite photodetector based on the interfacial engineering in perovskite heterostructures. Besides, two kinds of perovskite photodetectors, namely vertical structure and lateral structure, are analyzed, and the challenges to achieve practical applications in photodetectors are also discussed.

近年来，卤化钙钛矿利用高光吸收系数，长载流子扩散长度和强烈的光致发光特性，在开发高性能光电器件方面引起了广泛的兴趣，这些器件包括太阳能电池，发光二极管，光电探测器，晶体管激光等等。特别是，有效光吸收与可调整的吸收光谱以及在宽带范围内的高载流子迁移率的完美结合，使得钙钛矿基光电探测器不同于由GaN，Si和InGaAs等无机半导体制成的传统光电探测器。根据最近的报道，钙钛矿有望大大改善光电探测器的响应度，探测率，噪声等效功率，线性动态范围和响应速度。这里，我们根据各种低维钙钛矿的进展总结了有机-无机杂化钙钛矿基光电探测器的最新进展，以及基于界面工程在钙钛矿异质结构中增强钙钛矿光电探测器性能的最新有效方法。此外，分析了两种钙钛矿光电探测器，即垂直结构和横向结构，并讨论了在光电探测器中实现实际应用所面临的挑战。