Abstract
A one-band model within the effective mass approximation is adopted to characterize the energy structure and oscillator strength of type-II semiconductor spherical core–shell quantum dots. The heteroepitaxial strain of the core–shell heterostructure is modeled by the elastic continuum approach. The model is applied to ZnTe/ZnSe core–shell, a wide band gap type-II heterostructure. The simulated absorption spectra are in fair agreement with available experimental results.
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