scholarly journals Multi-dimensional coherent spectroscopy of CdSe colloidal quantum dots at cryogenic temperatures

2019 ◽  
Vol 205 ◽  
pp. 03011
Author(s):  
Albert Liu ◽  
Diogo B. Almeida ◽  
Wan Ki Bae ◽  
Lazaro A. Padilha ◽  
Steven T. Cundiff
Keyword(s):  
Quantum Dots ◽  
Colloidal Quantum Dots ◽  
Cryogenic Temperatures ◽  
Phonon Coupling ◽  
Electron Phonon Coupling ◽  
Coupling Dynamics ◽  
Coherent Spectroscopy

One-quantum and zero-quantum multi-dimensional coherent spectroscopy are used to study CdSe colloidal quantum dots at cryogenic temperatures. Each technique reveals unique aspects of the electron-phonon coupling dynamics in the material.

scholarly journals Contribution of electron-phonon coupling to the luminescence spectra of single colloidal quantum dots

2019 ◽  
Vol 151 (17) ◽  
pp. 174710 ◽  
Author(s):  
Eduard A. Podshivaylov ◽  
Maria A. Kniazeva ◽  
Aleksei A. Gorshelev ◽  
Ivan Yu. Eremchev ◽  
Andrei V. Naumov ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Colloidal Quantum Dots ◽  
Luminescence Spectra ◽  
Phonon Coupling ◽  
Electron Phonon Coupling

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.

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

Electron–Phonon Coupling Dynamics at Oxygen Evolution Sites of Visible-Light-Driven Photocatalyst: Bismuth Vanadate

2013 ◽  
Vol 117 (19) ◽  
pp. 9881-9886 ◽  
Author(s):  
Norihiro Aiga ◽  
Qingxin Jia ◽  
Kazuya Watanabe ◽  
Akihiko Kudo ◽  
Toshiki Sugimoto ◽  
...  
Keyword(s):  
Visible Light ◽  
Oxygen Evolution ◽  
Bismuth Vanadate ◽  
Phonon Coupling ◽  
Electron Phonon Coupling ◽  
Visible Light Driven ◽  
Coupling Dynamics
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