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Thickness fluctuation relations in carrier dynamics of CdTe/ZnTe quantum dots

Title
Thickness fluctuation relations in carrier dynamics of CdTe/ZnTe quantum dots
Author
김태환
Keywords
Quantum dots; Discrete recombination; Carrier confinement; Thermal escape; Phonon interaction
Issue Date
2016-10
Publisher
ELSEVIER SCIENCE BV
Citation
JOURNAL OF LUMINESCENCE, v. 178, Page. 84-88
Abstract
We investigated the influence of thickness fluctuations on the carrier dynamics of CdTe/ZnTe quantum dots (QDs). The temperature dependence of both the red-shift in the band-edge transition energy and broadening of the emission line were evaluated using different models. We showed that the quantum confinement effect and thermal escape of the QDs can be extended to significantly higher temperatures. These results were confirmed by using the discrete recombination model to investigate localized and delocalized states. Taking place into the reducing fluctuations of QDs that the thermally activated transition energies and the carrier scattering via phonons are enhanced. (C) 2016 Elsevier B.V. All rights reserved.
URI
https://www.sciencedirect.com/science/article/pii/S0022231315302003?via%3Dihubhttps://repository.hanyang.ac.kr/handle/20.500.11754/100489
ISSN
0022-2313; 1872-7883
DOI
10.1016/j.jlumin.2016.05.050
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ELECTRONIC ENGINEERING(융합전자공학부) > Articles
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