Optical Study of Carrier Transfer in Strain-induced Quantum Dots

1995 ◽  
Vol 417 ◽  
Author(s):  
Yitong Gu ◽  
M. D. Sturge ◽  
K. Kash ◽  
B. P. Van der Gaag ◽  
A. S. Gozdz ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Quantum Well ◽  
Barrier Height ◽  
Intermediate State ◽  
Excitation Transfer ◽  
Optical Study ◽  
Thermally Activated ◽  
Carrier Transfer

AbstractWe have studied excitation transfer from the host quantum well to strain-confined quantum dots. We find that there is a long-lived intermediate state acting as a reservoir, holding the excitation before it is thermally activated over a barrier to reach the quantum dot. The barrier height increases monotonically with dot size.

Excitation Transfer through Quantum Dots Measured by Microluminescence: Dependence on the Quantum Dot Density

2001 ◽  
Vol 187 (1) ◽  
pp. 45-48 ◽  
Author(s):  
F.V. de Sales ◽  
S.W. da Silva ◽  
A.F.G. Monte ◽  
M.A.G. Soler ◽  
M.J. Da Silva ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Excitation Transfer ◽  
Dot Density

scholarly journals Carrier transfer efficiency and its influence on emission properties of telecom wavelength InP-based quantum dot – quantum well structures

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Wojciech Rudno-Rudziński ◽  
Marcin Syperek ◽  
Janusz Andrzejewski ◽  
Ernest Rogowicz ◽  
Gadi Eisenstein ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Quantum Well ◽  
Transfer Efficiency ◽  
Quantum Well Structures ◽  
Emission Properties ◽  
Carrier Transfer ◽  
Telecom Wavelength

Comparative investigation of quantum-dot-like localization centers in InGaN quantum well and quantum dot structures

2005 ◽  
Vol 892 ◽  
Author(s):  
Kathrin Sebald ◽  
Henning Lohmeyer ◽  
Jürgen Gutowski ◽  
Tomohiro Yamaguchi ◽  
Detlef Hommel
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Quantum Well ◽  
Comparative Investigation ◽  
Emission Lines ◽  
Excitation Density ◽  
Spectral Position ◽  
Strong Localization ◽  
Experimental Findings

AbstractWe present comparative micro-photoluminescence measurements on InGaN/GaN quantum well and quantum dot samples. Single sharp emission lines were investigated for both kinds of samples as a function of temperature and excitation density. For the sharp emission lines of the quantum dots and the strong localization centers in the quantum well samples comparable experimental findings were obtained such as the independence of their spectral position of the excitation density and the observation of binding and antibinding multiexcitonic states giving clear evidence for the quantum dot nature of localization centers.

Optical study of lateral carrier transfer in (In,Ga)As∕GaAs quantum-dot chains

2008 ◽  
Vol 93 (1) ◽  
pp. 011107 ◽  
Author(s):  
B. R. Wang ◽  
B. Q. Sun ◽  
Y. Ji ◽  
X. M. Dou ◽  
Z. Y. Xu ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Optical Study ◽  
Carrier Transfer ◽  
Gaas Quantum Dot

Tunneling-barrier controlled excitation transfer in hybrid quantum dot-quantum well nanostructures

2010 ◽  
Vol 108 (7) ◽  
pp. 074316 ◽  
Author(s):  
Yu. I. Mazur ◽  
V. G. Dorogan ◽  
E. Marega ◽  
Z. Ya. Zhuchenko ◽  
M. E. Ware ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Quantum Well ◽  
Excitation Transfer ◽  
Tunneling Barrier

Tuning Between Quantum-Dot- and Quantum-Well-Like Behaviors in Type II ZnTe Submonolayer Quantum Dots by Controlling Tellurium Flux During MBE Growth

2013 ◽  
Vol 42 (11) ◽  
pp. 3297-3302 ◽  
Author(s):  
H. Ji ◽  
B. Roy ◽  
S. Dhomkar ◽  
R. T. Moug ◽  
M. C. Tamargo ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Quantum Well ◽  
Type Ii ◽  
Mbe Growth

Thermally activated carrier transfer and luminescence line shape in self‐organized InAs quantum dots

1996 ◽  
Vol 69 (22) ◽  
pp. 3354-3356 ◽  
Author(s):  
L. Brusaferri ◽  
S. Sanguinetti ◽  
E. Grilli ◽  
M. Guzzi ◽  
A. Bignazzi ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Line Shape ◽  
Luminescence Line ◽  
Inas Quantum Dots ◽  
Thermally Activated ◽  
Carrier Transfer ◽  
Self Organized

scholarly journals Thermally activated carrier transfer processes in InGaN∕GaN multi-quantum-well light-emitting devices

2005 ◽  
Vol 98 (2) ◽  
pp. 023703 ◽  
Author(s):  
C. L. Yang ◽  
L. Ding ◽  
J. N. Wang ◽  
K. K. Fung ◽  
W. K. Ge ◽  
...  
Keyword(s):  
Quantum Well ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Thermally Activated ◽  
Carrier Transfer ◽  
Transfer Processes ◽  
Multi Quantum Well
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