Analytical approach for type-II semiconductor spherical core-shell quantum dots heterostructures with wide band gaps
arXiv:1301.4899 · doi:10.1016/j.spmi.2013.05.027
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.