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S. I. GEORGESCU1,* , S. MICLUŢA-CÂMPEANU1
- Faculty of Physics, University of Bucharest, Bucharest 077125, Romania
Within the effective mass approximation the sub-band energy structure of semiconductor cylindrical core/shell nanowires is simulated. The heteroepitaxial strain of the core-shell heterostructure is modeled by the elastic continuum approach within an isotropic treatment. The general equilibrium equation, Hooke's law and interface boundary matching condition are used in the strain modeling. The analytical results are applied to ZnTe/ZnSe, a wide band gap type-II heterostructure. Localization of the photoexcited electron-hole carriers and oscillator strength are investigated as function of the shell thickness. The calculated oscillator strengths are in accordance with previous reported results..
Nanowires, Core/Shell, Optics.
Submitted at: Sept. 22, 2015
Accepted at: Oct. 28, 2015
S. I. GEORGESCU, S. MICLUŢA-CÂMPEANU, Optical properties of ZnTe/ZnSe core/shell nanowire, Journal of Optoelectronics and Advanced Materials Vol. 17, Iss. 11-12, pp. 1661-1667 (2015)
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