Synthesis of Perovskite Nanowires and Their Application for Photodetectors

1D nanowires (broadly including microwires and quantum wires) of metal halide perovskites exhibit several unique properties due to their distinctive morphology, such as enhanced responsivity under weak light, mechanical flexibility, and optical anisotropy. These perovskite nanowires can be readily fabricated into lateral devices as photoconductive photodetectors. Herein, the synthesis of perovskite nanowires and their applications for photodetectors are primarily focused on, providing an overview of the major synthesis strategies for perovskite nanowires (and arrays) since their initial reports, and analyzing how structural design and modification strategies can improve the performance of nanowire-based devices. The performance of some reported nanowire photodetectors is summarized and analyzed. In addition, the applications for nanowire photodetectors in polarization detection, flexible sensing, and image sensing, followed by a conclusion and outlook are discussed in detail.