Ion-Track Template Synthesis and Characterization of ZnSeO3 Nanocrystals
Alma Dauletbekova, Aiman Akylbekovа, Gulnaz Sarsekhan, А. Usseinov, Zein Baimukhanov, Аrtem L. Kozlovskiy, Л. А. Власукова, Ф. Ф. Комаров, Anatoli I. Popov, А. Аkilbekov
Abstract
ZnSeO3 nanocrystals with an orthorhombic structure were synthesized by electrochemical and chemical deposition into SiO2/Si ion-track template formed by 200 MeV Xe ion irradiation with the fluence of 107 ions/cm2. The lattice parameters determined by the X-ray diffraction and calculated by the CRYSTAL computer program package are very close to each other. It was found that ZnSeO3 has a direct band gap of 3.8 eV at the Γ-point. The photoluminescence excited by photons at 300 nm has a low intensity, arising mainly due to zinc and oxygen vacancies. Photoluminescence excited by photons with a wavelength of 300 nm has a very low intensity, presumably due to electronic transitions of zinc and oxygen vacancies.