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Erschienen in: Optical and Quantum Electronics 6/2015

01.06.2015

Charge sensitivity simulation on a double barrier GaAs/InGaAs/InAs quantum dot-in-well hybrid structure photodetector

verfasst von: W. W. Wang, M. J. Wang, X. B. Jin, F. M. Guo, Y. Q. Li

Erschienen in: Optical and Quantum Electronics | Ausgabe 6/2015

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Abstract

In this paper we simulated a photodetector based on a double barrier GaAs/InGaAs/InAs quantum dots–quantum well hybrid structure, calculated its I–V and C–V characteristic and studied the electronic states of the self-assembled InAs quantum dots embedded in InGaAs and GaAs quantum wells. By optimizing the device structure, ultrahigh sensitivity was obtained. We attributed this high sensitivity to the double barrier structure that effectively lowered dark current. This simulation method can be used to designing and optimizing devices with similar structure.

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Metadaten
Titel
Charge sensitivity simulation on a double barrier GaAs/InGaAs/InAs quantum dot-in-well hybrid structure photodetector
verfasst von
W. W. Wang
M. J. Wang
X. B. Jin
F. M. Guo
Y. Q. Li
Publikationsdatum
01.06.2015
Verlag
Springer US
Erschienen in
Optical and Quantum Electronics / Ausgabe 6/2015
Print ISSN: 0306-8919
Elektronische ISSN: 1572-817X
DOI
https://doi.org/10.1007/s11082-014-0111-0

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