Неоднородное уширение экситонного пика поглощения в квантовых точках InP/zns

Abstract

Inhomogeneous broadening of the first exciton absorption band of InP/ZnS quantum dots was analyzed using numeric simulation. Under assumption of Gaussian shape for absorption band and FWHM of individual components corresponding to bulk excitions, our experimental data was approximated using peaks, imitating distributions in size, shape, etc. Total FWHM of the QD ensemble exciton band was shown to be independent on the homogeneous broadening and temperature-induced shifts of the individual spectral components.