The photoelectric conversion behavior of GaAs/InGaAs/InAs quantum dots-in-well in double barrier

2014 ◽  
Author(s):  
W. W. Wang ◽  
L. Ding ◽  
F. M. Guo
Keyword(s):  
Quantum Dots ◽  
Photoelectric Conversion ◽  
Double Barrier ◽  
Inas Quantum Dots

scholarly journals Photoelectric Characteristics of Double Barrier Quantum Dots-Quantum Well Photodetector

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
M. J. Wang ◽  
F. Y. Yue ◽  
F. M. Guo
Keyword(s):  
Quantum Dots ◽  
Quantum Well ◽  
Light Level ◽  
Hybrid Structure ◽  
Detection Sensitivity ◽  
Quantum Oscillation ◽  
Low Light ◽  
Double Barrier ◽  
Light Power ◽  
Inas Quantum Dots

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 to3.05×10-15 A, at bias of −1.35 V. Its current responsivity can reach about6.8×105 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.

Magnetotunneling spectroscopy imaging of electron wave functions in self-assembled InAs quantum dots

2001 ◽  
Vol 171 (12) ◽  
pp. 1365
Author(s):  
E.E. Vdovin ◽  
Yu.N. Khanin ◽  
Yu.V. Dubrovskii ◽  
A. Veretennikov ◽  
A. Levin ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Wave Functions ◽  
Electron Wave ◽  
Inas Quantum Dots ◽  
Self Assembled

Electrically Driven Near-Infrared Broadband Light Source with Gaussian-Like Spectral Shape Based on Multiple InAs Quantum Dots

2016 ◽  
Vol E99.C (3) ◽  
pp. 381-384 ◽  
Author(s):  
Takuma YASUDA ◽  
Nobuhiko OZAKI ◽  
Hiroshi SHIBATA ◽  
Shunsuke OHKOUCHI ◽  
Naoki IKEDA ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Light Source ◽  
Near Infrared ◽  
Spectral Shape ◽  
Inas Quantum Dots ◽  
Broadband Light Source

Annealing-Induced Structural Evolution of InAs Quantum Dots on InP (111)A Formed by Droplet Epitaxy

2021 ◽  
Author(s):  
Takaaki Mano ◽  
Akihiro Ohtake ◽  
Neul Ha ◽  
Takeshi Noda ◽  
Yoshiki Sakuma ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Structural Evolution ◽  
Droplet Epitaxy ◽  
Inas Quantum Dots

Polarization-Dependent Four-Wave Mixing Measurements in Highly-stacked InAs Quantum Dots

2007 ◽  
Author(s):  
M. Kujiraoka ◽  
J. Ishi-Hayase ◽  
K. Akahane ◽  
N. Yamamoto ◽  
K. Ema ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Four Wave Mixing ◽  
Wave Mixing ◽  
Inas Quantum Dots
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