Abstract
The model of CdSe quantum dot with a multilayer shell that undergoes mechanical deformation is constructed. This theory takes into account the influence of external hydrostatic pressure, the Laplace surface pressure and the mismatch of lattice parameters of contacting materials of the nanoheterosystem. Within the framework of the developed model, the baric coefficient of CdSe/ZnS/CdS/ZnS quantum dot was calculated for different values of the CdSe core radius and at different thicknesses of the ZnS/CdS/ZnS shell layers. It is established that for small cores (with a diameter of less than 4.8 nm) of quantum dots with a three-layer shell, two values of the baric coefficient are possible depending on the magnitude of external pressure. The analysis of use of the offered model for research of interaction of quantum dots with elements of biological systems through an elastic field of deformation is carried out.
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