Strain Influence on Optical Absorption of Giant Semiconductor Colloidal Quantum Dots
arXiv:1408.4972 · doi:10.1016/j.cplett.2014.07.078
Abstract
The lattice mismatch strain field of core/multishell structures with spherical symmetry is modeled by a linear continuum elasticity approach. The effect of the strain on the energy structure and linear optical absorption in large core/shell/shell spherical semiconductor quantum dots is analyzed. Localization of the photoexcited carriers induced by coating is found to play an important role in explaining the optical stability of large CdSe/CdS/ZnS and ZnTe/ZnSe/ZnS quantum dots.
arXiv comment25 pages, 5 figures
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