Temperature dependence of gain in a highly stacked quantum-dot semiconductor optical amplifiier

2017 ◽  
Author(s):  
Naoya Yoshida ◽  
Yuu Fukae ◽  
Kouichi Akahane ◽  
Naokatsu Yamamoto ◽  
Atsushi Matsumoto ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Temperature Dependence

scholarly journals Temperature dependence of photoluminescence characteristics of excitons in stacked quantum dots and quantum dot chains

2010 ◽  
Vol 107 (7) ◽  
pp. 073506 ◽  
Author(s):  
Osamu Kojima ◽  
Hiroaki Nakatani ◽  
Takashi Kita ◽  
Osamu Wada ◽  
Kouichi Akahane
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Temperature Dependence ◽  
Stacked Quantum Dots

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.

scholarly journals Temperature dependence of Coulomb oscillations in a few-layer two-dimensional WS2 quantum dot

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Xiang-Xiang Song ◽  
Zhuo-Zhi Zhang ◽  
Jie You ◽  
Di Liu ◽  
Hai-Ou Li ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Temperature Dependence ◽  
Two Dimensional

scholarly journals Inverse Temperature Dependence of Charge Carrier Hopping in Quantum Dot Solids

ACS Nano ◽  
2018 ◽  
Vol 12 (8) ◽  
pp. 7741-7749 ◽  
Author(s):  
Rachel H. Gilmore ◽  
Samuel W. Winslow ◽  
Elizabeth M. Y. Lee ◽  
Matthew Nickol Ashner ◽  
Kevin G. Yager ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Charge Carrier ◽  
Temperature Dependence ◽  
Inverse Temperature

Temperature dependence of the quantum dot lateral size in the Ge/Si(100) system

2003 ◽  
Vol 236 (1) ◽  
pp. R1-R3 ◽  
Author(s):  
A. A. Tonkikh ◽  
V. G. Dubrovskii ◽  
G. E. Cirlin ◽  
V. A. Egorov ◽  
V. M. Ustinov ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Temperature Dependence ◽  
Lateral Size
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