Modified vapor phase deposition technology for high-performance uncooled MIR PbSe detectors.

ABSTRACT: The low performance of middle infrared (MIR) PbSe detectors fabricated from vapor phase deposition (VPD) technology restricts the rapid development of VPD technology and detector commercialization. A modified VPD process was proposed to duplicate the microstructural features of high-performance CBD-PbSe detectors for a breakthrough in the VPD technology. A peak detectivity D* of 1.6 × 10¹⁰ cm Hz^1/2 W^-1 at 298 K was achieved under the optimized sensitization, approaching the best performance of CBD-PbSe detectors. Through the contrasting various microstructures obtained from diverse methods, the nanoparticle self-assembly structure in VPD-PbSe oriented rod-like crystals is an important factor for the IR sensitivity. The microstructural evolution demon

SUBMITTER: Qiu J 

PROVIDER: S-EPMC9042917 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature