The Recent Progress and State-of-art applications for Ultraviolet Photodetectors

Abstract

Contemporarily, ultraviolet photodetectors have already been successfully applied in many advanced areas, including astronomy, disaster forecasting, fire alarm, marine oil pollution monitoring, biomedical and more. Nowadays, many researchers are focusing on developing the wide bandgap UV photodetectors which possess advantages in fast response speed, high sensitivity, self-power, etc. This paper will discuss principle, types, and component of ultraviolet photodetectors based on information retrieval and literature analysis. Specifically, vacuum UV detectors, solid-state UV detectors and wide bandgap UV photodetectors are demonstrated. According to the analysis, wide bandgap UV photodetectors have better performance in multiple properties but still be limited with several drawbacks, included material problems and design issues. Once the material problems and design issues could be overcome, they could replace the traditional UV photodetectors rapidly, which are able to benefit more relevant areas in both military and civilization. These results shed light on guiding further exploration in UV photodetectors current.