Improved performance of UV-blue dual-band Bi₂O₃/TiO₂ photodetectors and application of visible light communication with UV light encryption

Abstract

In this paper, Self-powered photodetectors (PDs) with dual-band photoresponse and excellent photodetection capabilities in complex environments can meet the needs of diverse detection targets, complex environments and diverse tasks. Herein,...

Solution processed CuInS2/SnO2 heterojunction based self-powered photodetector for UV encrypted visible light communication

“…These findings underscore the device's ability to differentiate and respond to each condition through changes in photocurrent. This behavior can be utilized in decoding the visible light communication encrypted with UV light [33,50,51]. In this encrypted communication, distinct states such as 00, 01, 10, and 11 can align with conditions where no light is present, visible light is active, UV light is active, and both lights are concurrently active, respectively, as depicted in figure 11.…”