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GUOZHI JIA1,*
We investigate the electronic structures and quantum confinement of CdS/ZnS core/shell quantum dots by using the effective-mass approximation theory, taking account of the Coulomb interaction between the electron and hole. The calculated results shows that the electron and hole can be mainly localized in the core area for the CdS/ZnS type-Ⅰheterostructure. The transition energies can be widely tuned by changing the structure parameters. The electron and hole wavefunctions are almost localized in the core area and there was a large overlap for the CdS/ZnS quantum dots. The changing of the 1s-1s transition energy in quantum dots with the changing core size are different dramatically from that with the changing shell size due to quantum size effects..
Nano materials, Sandwich structures, Electrical, Optical.
GUOZHI JIA, Excitons properties and quantum confinement in CdS/ZnS core/shell quantum dots, Optoelectronics and Advanced Materials - Rapid Communications, 5, 7, July 2011, pp.738-741 (2011).
Submitted at: June 21, 2011
Accepted at: July 25, 2011
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
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