Abstract
Photoluminescence spectra of composite thin films based on C60<CdTe> before and after X-ray irradiation, as well as the results of quantum-chemical calculations of corresponding molecular complexes are presented. Fullerene films doped by CdTe with various concentrations were obtained by means of vacuum co-evaporation in a Knudsen cell. Composition and surface morphology were measured by secondary electron microscopy and energy-dispersive X-ray spectroscopy. X-ray irradiated films were considered, and additional peaks in photoluminescence spectra were detected. These peaks appear as a result of molecular complexes formation from C60CdTe mixture and dimerization of the films. Density functional B3LYP quantum-chemical calculations for C60CdTe, molecular complexes, (C60)2 and C120O dimers were performed to elucidate some experimental results.
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