Zero bias PIN photodetector based on gradient band distribution and doping gradient profile

Periodically structured Si pillars for high-performing heterojunction photodetectors

“…Constantly, new methods, designs and materials have been put forward in photoelectric research in order to increase the photoresponse of the devices as it is an important tool for photodetectors, solar cells and sensors [1,2]. Photodetectors are one of the most ubiquitous types of technology in use nowadays [3].…”