Effects of step-potential on confinement strength of strain-induced type-I core–shell quantum dots

Citation

Tiansin, Shelawati and Mohd Shah, Nurisya and Chan, Kar Tim and Ahmad Kamarudin, Mazliana (2019) Effects of step-potential on confinement strength of strain-induced type-I core–shell quantum dots. Superlattices and Microstructures, 131. pp. 95-103. ISSN 0749-6036

Abstract

In this paper, the transition energy between lowest unoccupied molecular orbital (LUMO) of conduction band and highest occupied molecular orbital (HOMO) of valence band for band structures of type-I core-shell quantum dots (CSQDs) within a strong and weak confinements of charge carriers are estimated using the effective mass approximation together with single-band model. The effect of potential step at the conduction and valence bands on the confinement strength is then properly discussed. Our numerical results show that for a same size of CSQDs, the one with bigger potential steps will have stronger carriers' confinement with more localized excitons.

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Additional Metadata

Item Type:	Article
Divisions:	Faculty of Science Institute for Mathematical Research
DOI Number:	https://doi.org/10.1016/j.spmi.2019.05.021
Publisher:	Elsevier
Keywords:	Quantum dots; Colloidal quantum dots; Transition energy; Bessel spherical functions
Depositing User:	Nurul Ainie Mokhtar
Date Deposited:	15 Aug 2021 00:41
Last Modified:	15 Aug 2021 00:41
Altmetrics:	http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.spmi.2019.05.021
URI:	http://psasir.upm.edu.my/id/eprint/79625
Statistic Details:	View Download Statistic

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