The BaNdTiW O (BNT ) pervoskite with a single phase tetragonal structure was prepared at 900 °C using the Molten salt method. Raman spectra, Fourier transform infrared spectra (FT-IR), absorption spectra (Vis-NIR) and photoluminescence spectra (PL) in the temperature range from 10-300 K were used to investigate the correlations between the crystal structure and the optical properties of BNT ceramics. Raman analyses and FT-IR indicated that the W ions are incorporated sufficiently into into the BNT lattice.
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