ArticleMaterials (Basel, Switzerland)2026
Single-Pixel Shortwave Infrared Imaging Based on PbS Quantum Dots.
Article in Materials (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Shortwave infrared (SWIR) imaging technology, with its excellent penetration and anti-interference capabilities, is widely applied in military, medical, and industrial fields. However, traditional detectors (e.g., InGaAs) are expensive, have complex readout circuits, and exhibit insufficient low-light performance, limiting their large-scale promotion. This paper proposes and implements a single-pixel SWIR imaging system based on PbS quantum dot (QD) detectors. A single-pixel imaging system is constructed using PbS QD detectors with a formal device structure (ITO/ZnO/PbS/PbS-EDT/Au); through simulation studies, the effect of the PbS absorption layer thickness on device performance is investigated, and it is determined that a thickness of 450 nm yields optimal device performance. Based on the simulation results, a P-I-N structure PbS photovoltaic-type detector with high external quantum efficiency (
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