Ultrabroadband Tellurium Photoelectric Detector from Visible to Millimeter Wave.

ABSTRACT: Ultrabroadband photodetection is of great significance in numerous cutting-edge technologies including imaging, communications, and medicine. However, since photon detectors are selective in wavelength and thermal detectors are slow in response, developing high performance and ultrabroadband photodetectors is extremely difficult. Herein, one demonstrates an ultrabroadband photoelectric detector covering visible, infrared, terahertz, and millimeter wave simultaneously based on single metal-Te-metal structure. Through the two kinds of photoelectric effect synergy of photoexcited electron-hole pairs and electromagnetic induced well effect, the detector achieves the responsivities of 0.793 A W^-1 at 635 nm, 9.38 A W^-1 at 1550 nm, 9.83 A W^-1 at 0.305 THz, 24.8 A

SUBMITTER: Ma W 

PROVIDER: S-EPMC8844568 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature