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An Ultraviolet‐to‐NIR Broad Spectral Nanocomposite Photodetector with Gain
Author(s) -
Dong Rui,
Bi Cheng,
Dong Qingfeng,
Guo Fawen,
Yuan Yongbo,
Fang Yanjun,
Xiao Zhengguo,
Huang Jinsong
Publication year - 2014
Publication title -
advanced optical materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.89
H-Index - 91
ISSN - 2195-1071
DOI - 10.1002/adom.201400023
Subject(s) - photodetector , materials science , responsivity , optoelectronics , ultraviolet , photoconductivity , nanocomposite , quantum dot , quantum efficiency , detector , optics , nanotechnology , physics
A PbS‐based NIR hybrid photodetector with an external quantum efficiency (EQE) above 100% is created by integrating zinc oxide (ZnO) quantum dots (QDs) to induce a photoconductive gain. The dual‐QD hybrid photodetector also shows a tenfold higher responsivity than that of commercial SiC and Si photodetectors in the UV–visible range at room temperature.