scholarly journals Influence of p-doping on the temperature dependence of InAs/GaAs quantum dot excited state radiative lifetime

2012 ◽  
Vol 101 (18) ◽  
pp. 183108 ◽  
Author(s):  
Edmund Harbord ◽  
S. Iwamoto ◽  
Y. Arakawa ◽  
P. Spencer ◽  
E. Clarke ◽  
...  
Keyword(s):  
Excited State ◽  
Quantum Dot ◽  
Temperature Dependence ◽  
Radiative Lifetime ◽  
Gaas Quantum Dot ◽  
Excited State Radiative Lifetime

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.

Interconnection between ground state and excited state gain in InAs/GaAs quantum dot semiconductor optical amplifiers

2009 ◽  
Vol 246 (4) ◽  
pp. 868-871 ◽  
Author(s):  
M. T. Crowley ◽  
A. D. Andreev ◽  
T. Piwonski ◽  
J. Houlihan ◽  
E. P. O'Reilly ◽  
...  
Keyword(s):  
Excited State ◽  
Quantum Dot ◽  
Ground State ◽  
Optical Amplifiers ◽  
Semiconductor Optical Amplifiers ◽  
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
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