Open AccessNoise characterization of quantum dot infrared photodetectors
Author(s) -
Hongmei Liu,
Chunhua Yang,
Xin Liu,
Jianqi Zhang,
Yunfeng Shi
Publication year - 2013
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.62.218501
Subject(s) - noise (video) , photodetector , microscale chemistry , quantum dot , infrared , energy (signal processing) , physics , electron , optoelectronics , nanoscopic scale , optics , computer science , quantum mechanics , mathematics education , mathematics , artificial intelligence , image (mathematics)
A theoretical model for the noise is derived in this paper to characterize the influence of the noise on quantum dot infrared photodetectors. In this model, the noise current is estimated with the consideration of the common influence of the nanoscale electron transport and microscale electron transport on the activation energy and the contribution of the noise gain. The obtained results show a good agreement with the published experimental values, which illustrates the validity of the model.