Room Temperature Broadband Bi₂Te₃/PbS Colloidal Quantum Dots Infrared Photodetectors.

ABSTRACT: Lead sulfide colloidal quantum dots (PbS CQDs) are promising optoelectronic materials due to their unique properties, such as tunable band gap and strong absorption, which are of immense interest for application in photodetectors and solar cells. However, the tunable band gap of PbS CQDs would only cover visible short-wave infrared; the ability to detect longer wavelengths, such as mid- and long-wave infrared, is limited because they are restricted by the band gap of the bulk material. In this paper, a novel photodetector based on the synergistic effect of PbS CQDs and bismuth telluride (Bi₂Te₃) was developed for the detection of a mid-wave infrared band at room temperature. The device demonstrated good performance in the visible-near infrared band (i.e., between 660

SUBMITTER: Yu L 

PROVIDER: S-EPMC10181788 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature