Raman scattering and photoluminescence in sodium uranyl acetate polycrystals

Resumo

A technique of probe photoluminescence and Raman spectroscopy has been developed. This technique makes it possible to detect small (10⁻⁶ to 10⁻⁸ g) amounts of uranyl compounds at short exposure times (1−10 s). The photoluminescence spectra of Na[UO₂CH₃(COO)₃] polycrystals recorded upon excitation by short-wavelength radiation of LEDs and lasers are found to contain equidistant bands with a shift of 854 cm⁻¹, which corresponds to the frequency of totally symmetric uranyl vibration also manifesting itself in Raman spectra.