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GUOZHI JIA1,* , YUNFENG WANG2, JIANGHONG YAO2
Using the effective-mass approximation method, the electronic structures of CdSe/CdxZn1-xS core/shell quantum dots are investigated systematically. The Coulomb interaction between the electron and hole is also taken into account. The calculated results shown that the electron and hole can be strongly confined in the core for the CdSe/CdxZn1-xS type-Ⅰheterostructure, which can mainly be ascribed to the large valence and conduction band offset between CdSe and CdxZn1-xS. The lattice mismatch between core and shell layer can easily be implemented by adjusting the molar ratio of Cd in the shell layer. The transition energies can be widely tuned by the changing the structure parameters.
Exciton, Quantum dot, CdSe/Cd-Zn-S.
GUOZHI JIA, YUNFENG WANG, JIANGHONG YAO, Excitons properties in CdSe/CdxZn1-xS core/shell quantum dots, Optoelectronics and Advanced Materials - Rapid Communications, 4, 12, December 2010, pp.2080-2084 (2010).
Submitted at: Oct. 20, 2010
Accepted at: Nov. 29, 2010
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
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