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Journal of Nanophotonics

Experimental and theoretical study of localization of electrons by deformed potential well in quantum dots
Author(s): Yu-Jen Chen; Cheng-Chung Lee; Francois R. Flory
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Paper Abstract

The deformed potential structure of CdSe/ZnS core/shell quantum dots (QDs) was analyzed by calculating precise state energies and state functions. Exactly how an external electric field affects the photoluminescence was also studied. Additionally, the tilt potential structure induced by the external electric field, commonly referred to as the quantum-confined Stark effect, was calculated to account for the observed blue and red shifts. Experimental results indicated that the deformation also includes a bend, which is attributed to the shape of a QD. Calculations of the localization of electrons of the foregoing phenomena closely correspond to the experimental data.

Paper Details

Date Published: 23 April 2014
PDF: 10 pages
J. Nanophoton. 8(1) 083090 doi: 10.1117/1.JNP.8.083090
Published in: Journal of Nanophotonics Volume 8, Issue 1
Show Author Affiliations
Yu-Jen Chen, National Central Univ. (Taiwan)
Cheng-Chung Lee, National Central Univ. (Taiwan)
Francois R. Flory, Ecole Centrale Marseille (France)

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