“…Optical communication, as a high-speed, large-capacity, low-loss, and anti-interference communication method, has become one of the most critical technologies in the field of modern communication. Photodetectors, as the core part of the receiving end of optical communication, play a decisive role in capturing optical signals and converting electrical signals. − The range of optical communication covers ultraviolet (UV) (10–400 nm) to short infrared (SIR) (1.1–3 μm). , Among them, deep ultraviolet (DUV) (200–300 nm) has the advantages of high confidentiality, environmental solid adaptability, all-weather capability, and flexible mobility in local communication, which can be used in military combat, emergency rescue, disaster relief, and other scenarios. , The 1.26–1.625 μm IR band has become the first choice for IR optical communication due to its slight distortion and the lowest loss in optical fiber . Therefore, the development of broadband photodetectors with a fast response speed, high sensitivity, and a detection band covering the DUV and SIR is of great significance for the future development of modern optical communication.…”