Mercury telluride colloidal quantum-dot focal plane array with planar p-n junctions enabled by in situ electric field-activated doping.

ABSTRACT: Colloidal quantum dot (CQD)-based photodetectors are promising alternatives to bulk semiconductor-based detectors to be monolithically integrated with complementary metal-oxide semiconductor readout integrated circuits avoiding high-cost epitaxial growth methods and complicated flip-bonding processes. To date, photovoltaic (PV) single-pixel detectors have led to the best performance with background-limit infrared photodetection performance. However, the nonuniform and uncontrollable doping methods and complex device configuration restrict the focal plane array (FPA) imagers to operate in PV mode. Here, we propose a controllable in situ electric field-activated doping method to construct lateral p-n junctions in the short-wave infrared (SWIR) mercury telluride (HgTe) CQD-based photodetector

SUBMITTER: Qin T 

PROVIDER: S-EPMC10337901 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature