Semimetals are being explored for their unique advantages in low-energy high-speed photodetection, although they suffer from serious drawbacks such as an intrinsically high dark current. In this perspective, we envision the exploitation of topological effects in the photoresponse of these materials as a promising route to circumvent these problems. We overview recent studies on photodetection based on graphene and other semimetals, and further discuss the exciting opportunities created by the topological effects, along with the additional requirements that they impose on photodetector designs.
@article{arxiv.2004.11129,
title = {Semimetals for high performance photodetection},
author = {Jing Liu and Fengnian Xia and Di Xiao and Javier García de Abajo and Dong Sun},
journal= {arXiv preprint arXiv:2004.11129},
year = {2021}
}
Comments
Perspective on photodetection based on topological semimetals