Energy relaxation in CdSe/ZnSe quantum dots under the strong exciton-phonon coupling regime

2006 ◽  
Vol 3 (4) ◽  
pp. 924-927 ◽  
Author(s):  
A. V. Platonov ◽  
T. Kiessling ◽  
G. V. Astakhov ◽  
A. A. Maksimov ◽  
A. V. Larionov ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Energy Relaxation ◽  
Phonon Coupling

scholarly journals Dynamics of coherence, localization and excitation transfer in disordered nanorings

2017 ◽  
Vol 19 (38) ◽  
pp. 25996-26013 ◽  
Author(s):  
Alejandro D. Somoza ◽  
Ke-Wei Sun ◽  
Rafael A. Molina ◽  
Yang Zhao
Keyword(s):  
Energy Relaxation ◽  
Excitation Transfer ◽  
Low Energy ◽  
Phonon Coupling ◽  
Transfer Enhancement

We reveal an optimal exciton–phonon coupling in LH2 that suppresses disorder-induced localization and facilitates excitation de-trapping. This excitation transfer enhancement, mediated by environmental phonons, is attributed to energy relaxation toward extended, low energy excitons provided by the precise geometry of the LH2.

Polaron lifetime and energy relaxation in semiconductor quantum dots

2000 ◽  
Vol 62 (8) ◽  
pp. R4809-R4812 ◽  
Author(s):  
O. Verzelen ◽  
R. Ferreira ◽  
G. Bastard
Keyword(s):  
Quantum Dots ◽  
Energy Relaxation ◽  
Semiconductor Quantum Dots

PATH-INTEGRAL APPROACH FOR ELECTRON–PHONON INTERACTION EFFECTS IN HARMONIC QUANTUM DOTS

1996 ◽  
Vol 10 (22) ◽  
pp. 2781-2796 ◽  
Author(s):  
SOMA MUKHOPADHYAY ◽  
ASHOK CHATTERJEE
Keyword(s):  
Quantum Dots ◽  
Path Integral ◽  
State Energy ◽  
Coupling Parameter ◽  
Three Dimensions ◽  
Integral Approach ◽  
Phonon Coupling ◽  
Electron Phonon Interaction ◽  
Electron Phonon Coupling ◽  
Parabolic Confinement

We use the Feynman–Haken path-integral formalism to obtain the polaronic correction to the ground state energy of an electron in a polar semiconductor quantum dot with parabolic confinement in both two and three dimensions. We perform calculations for the entire range of the electron–phonon coupling parameter and for arbitrary confinement length. We apply our results to several semiconductor quantum dots and show that the polaronic effect in some of these dots can be considerably large if the dot sizes are made smaller than a few nanometers.

scholarly journals Exciton-phonon coupling in single quantum dots with different barriers

2011 ◽  
Vol 98 (25) ◽  
pp. 251911 ◽  
Author(s):  
D. Dufåker ◽  
L. O. Mereni ◽  
K. F. Karlsson ◽  
V. Dimastrodonato ◽  
G. Juska ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Phonon Coupling ◽  
Single Quantum ◽  
Single Quantum Dots

Low temperature photoluminescence properties of CsPbBr3 quantum dots embedded in glasses

2017 ◽  
Vol 19 (26) ◽  
pp. 17349-17355 ◽  
Author(s):  
Bing Ai ◽  
Chao Liu ◽  
Zhao Deng ◽  
Jing Wang ◽  
Jianjun Han ◽  
...  
Keyword(s):  
Activation Energy ◽  
Quantum Dots ◽  
Thermal Expansion ◽  
Low Temperature ◽  
Size Dependence ◽  
Phonon Coupling ◽  
Photoluminescence Properties ◽  
Electron Phonon Coupling ◽  
Cspbbr3 Quantum Dots ◽  
Low Temperature Photoluminescence

Size dependence of exciton activation energy, electron–phonon coupling strength, and thermal expansion of the bandgap of CsPbBr3 QDs were studied.

Strong electron-phonon coupling regime in self-assembled quantum dots

2004 ◽  
Vol 1 (6) ◽  
pp. 1391-1396 ◽  
Author(s):  
E. Deleporte ◽  
S. Hameau ◽  
J. N. Isaia ◽  
Y. Guldner ◽  
O. Verzelen ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Phonon Coupling ◽  
Strong Electron ◽  
Electron Phonon Coupling ◽  
Self Assembled

Size dependence of the electronic structures and electron-phonon coupling in ZnO quantum dots

2007 ◽  
Vol 91 (26) ◽  
pp. 262101 ◽  
Author(s):  
S. C. Ray ◽  
Y. Low ◽  
H. M. Tsai ◽  
C. W. Pao ◽  
J. W. Chiou ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Electronic Structures ◽  
Size Dependence ◽  
Phonon Coupling ◽  
Electron Phonon Coupling ◽  
Zno Quantum Dots
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