Photoelectric Characteristics of Double Barrier Quantum Dots-Quantum Well Photodetector
Joint Authors
Guo, F. M.
Wang, M. J.
Yue, F. Y.
Source
Advances in Condensed Matter Physics
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-03-22
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
The photodetector based on double barrier AlAs/GaAs/AlAs heterostructures and a layer self-assembled InAs quantum dots and In0.15Ga0.85As quantum well (QW) hybrid structure is demonstrated.
The detection sensitivity and detection ability under weak illuminations have been proved.
The dark current of the device can remain at 0.1 pA at 100 K, even lower to 3.05×10-15 A, at bias of −1.35 V.
Its current responsivity can reach about 6.8×105 A/W when 1 pw 633 nm light power and −4 V bias are added.
Meanwhile a peculiar amplitude quantum oscillation characteristic is observed in testing.
A simple model is used to qualitatively describe.
The results demonstrate that the InAs monolayer can effectively absorb photons and the double barrier hybrid structure with quantum dots in well can be used for low-light-level detection.
American Psychological Association (APA)
Wang, M. J.& Yue, F. Y.& Guo, F. M.. 2015. Photoelectric Characteristics of Double Barrier Quantum Dots-Quantum Well Photodetector. Advances in Condensed Matter Physics،Vol. 2015, no. 2015, pp.1-6.
https://search.emarefa.net/detail/BIM-1052331
Modern Language Association (MLA)
Wang, M. J.…[et al.]. Photoelectric Characteristics of Double Barrier Quantum Dots-Quantum Well Photodetector. Advances in Condensed Matter Physics No. 2015 (2015), pp.1-6.
https://search.emarefa.net/detail/BIM-1052331
American Medical Association (AMA)
Wang, M. J.& Yue, F. Y.& Guo, F. M.. Photoelectric Characteristics of Double Barrier Quantum Dots-Quantum Well Photodetector. Advances in Condensed Matter Physics. 2015. Vol. 2015, no. 2015, pp.1-6.
https://search.emarefa.net/detail/BIM-1052331
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1052331