X-RAY-IRRADIATION INFLUENCE ON PHOTOLUMINESCENCE OF GAMMA-RBAG4I5 SUPERIONIC CRYSTALS

The low-temperature photoluminescence spectra of gamma-phase of RbAg4I 5 crystal (T less than or equal to 122 K) exposed to the light irradia tion with similar to 425 nm wavelength and X-ray irradiation at room t emperature in superionic alpha-phase were investigated. Analyzing the behaviour of similar to 390 nm emission band influenced to the exposed irradiations, a mechanism for the low-temperature photoluminescence i s proposed and discussed. XPS, AES and the low-temperature and room te mperature UPS spectra of RbAg4I5 superionic crystal are subjected to p reliminary investigation.