Temperature dependence of the photoluminescence of InGaAs/GaAs quantum dot structures without wetting layer

2002 ◽  
Vol 81 (16) ◽  
pp. 3067-3069 ◽  
Author(s):  
S. Sanguinetti ◽  
T. Mano ◽  
M. Oshima ◽  
T. Tateno ◽  
M. Wakaki ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Temperature Dependence ◽  
Wetting Layer ◽  
Gaas Quantum Dot

Carrier Hopping and Relaxation in InAs/GaAs Quantum Dot Heterostructures

2014 ◽  
Vol 875-877 ◽  
pp. 9-13
Author(s):  
Ya Fen Wu ◽  
Jiunn Chyi Lee
Keyword(s):  
Energy Level ◽  
Quantum Dot ◽  
Temperature Dependence ◽  
Thermal Emission ◽  
Carrier Dynamics ◽  
Photoluminescence Spectra ◽  
Discrete Energy ◽  
Discrete Energy Level ◽  
Size Uniformity ◽  
Gaas Quantum Dot

We investigate the effect of carrier dynamics on the temperature dependence of photoluminescence spectra from InAs/GaAs quantum dot heterostructures with different dot size uniformity. Intersublevel relaxation lifetimes and carrier transferring mechanisms are simulated using a model based on carriers relaxing and thermal emission of each discrete energy level in the quantum dot system. Calculated relaxation lifetimes are decreasing with temperature and have larger values for sample with lower dot size uniformity. In the quantitative discussion of carrier dynamics, the influence of thermal redistribution on carriers relaxing process of quantum dot system is demonstrated by our model.

Correlation of InGaAs/GaAs quantum dot and wetting layer formation

1998 ◽  
Vol 123-124 ◽  
pp. 352-355 ◽  
Author(s):  
V. Türck ◽  
F. Heinrichsdorff ◽  
M. Veit ◽  
R. Heitz ◽  
M. Grundmann ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Wetting Layer ◽  
Layer Formation ◽  
Gaas Quantum Dot

scholarly journals Temperature dependence of dark current properties of InGaAs/GaAs quantum dot solar cells

2011 ◽  
Vol 98 (18) ◽  
pp. 183509 ◽  
Author(s):  
Hao Feng Lu ◽  
Lan Fu ◽  
Greg Jolley ◽  
Hark Hoe Tan ◽  
Sudersena Rao Tatavarti ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Temperature Dependence ◽  
Dark Current ◽  
Quantum Dot Solar Cells ◽  
Gaas Quantum Dot

Temperature dependence of photoluminescence spectra in InAs/GaAs quantum dot superlattices with large thicknesses

1997 ◽  
Vol 82 (9) ◽  
pp. 4489-4492 ◽  
Author(s):  
Y. T. Dai ◽  
J. C. Fan ◽  
Y. F. Chen ◽  
R. M. Lin ◽  
S. C. Lee ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Temperature Dependence ◽  
Photoluminescence Spectra ◽  
Gaas Quantum Dot

scholarly journals Inter-Layer Energy Transfer through Wetting-Layer States in Bi-layer InGaAs/GaAs Quantum-Dot Structures with Thick Barriers

2009 ◽  
Vol 26 (5) ◽  
pp. 057304
Author(s):  
Xu Zhang-Cheng ◽  
Zhang Ya-Ting ◽  
Jørn M Hvam ◽  
Yoshiji Horikoshi
Keyword(s):  
Energy Transfer ◽  
Quantum Dot ◽  
Wetting Layer ◽  
Gaas Quantum Dot
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