Polarization‐Sensitive Photodetector Based on High Crystallinity Quasi‐1D BiSeI Nanowires Synthesized via Chemical Vapor Deposition

, fast response speed of 0.11 ms and superior air stability. More importantly, the photodetector displays strong polarization sensitivity (anisotropic ratio = 1.77) under the 532 nm light irradiation. This work will provide important guides to the synthesis of other quais-1D metal chalcohalides and shed light on their potential in constructing novel multifunctional optoelectronic devices.