Effect of ZnO on structure and luminescence properties of Ce3+-Yb3+ co-doped Na2O–CaO–SiO2–Al2O3 glasses for solar panel applications

Abstract

The Ce3+-Yb3+ co-doped Na2O–CaO–SiO2–Al2O3–ZnO glasses were prepared by the melt-quenching method. The effects of ZnO replacing CaO on the structure and luminescent properties of glass were studied. The thermodynamic temperature and thermal stability of the glasses were determined by DSC. The change in the glass network structure was analyzed by FT-IR spectra. The excitation spectrum, emission spectrum and fluorescence lifetime of Ce3+ in glass were determined by fluorescence spectrometer. The down-conversion luminescence spectra of Ce3+-Yb3+ ions excited at 355 nm were measured. According to the emission spectra of Ce3+ ions under different excitation wavelengths, the multiple luminescence centers of Ce3+ ions are determined, and the chromaticity coordinates of CIE are calculated. Finally, the energy transfer between Ce3+ and Yb3+ was analyzed. The Ce3+-Yb3+ co-doped glass can convert ultraviolet and visible light to the response band of c-Si solar cells, so it is an ideal candidate for solar panel glass.