UV-Visible and IR Spectroscopic Studies of Gamma Irradiated Transition Metal Doped Lead Silicate Glasses

Abstract

Lead silicate (LS) glasses of the basic composition PbO 75%, SiO 2 25% together with samples containing (∼0.1%) of transition 3d metal oxides (Ti→Cu) were prepared. UV/VIS optical analysis for as prepared and after successive gamma irradiated samples were used to shed more light on the structural modifications that occur due to different dopants and different irradiation doses. The UVVis. spectral analysis for undoped glass shows induced absorption bands at 205-400 nm which are assumed to be correlated with the base host glass and dopant transition metal ion doped glasses and dose of irradiation. The positions of the bands are observed to change slightly by gamma irradiation due to the combined effect of induced defects from the host base glass or the transition metal added. Gamma irradiation is observed to cause a decrease in the intensities of the IR absorption bands of the prepared samples accompanied by losing sharpness. These features are related to more amorphicity or disorder by irradiation or to the possible changes in bond angle or bond length in the building groups arrangement.

Effects of TiO2 and P2O5 on solarization and crystallization of photosensitive lithium silicate glass

“…Indeed, if ionizing radiation strikes glasses, physical properties may alter remarkably. Among the possible changes, color centers have great significance [19,25,26]. However, G T is the sole sample without considerable change in appearance.…”

Optical properties of 3d transition metal ion-doped sodium borosilicate glass

“…A recent development in this research area concerning the spectroscopic studies of collective 3d-TM ions (from Ti to Cu) in various host glasses, as investigated by Abdelghany and co-workers, has indicated that that barium borate, and lead silicate glasses favor the presence of TM ions in their high valence states or tetrahedral coordination while the high P 2 O 5 content in the host glasses promotes low oxidation states or octahedral coordination [11][12][13][14][15].…”

Structural characterization of gamma irradiated lithium phosphate glasses containing variable amounts of molybdenum

“…Studies of radiation effects in glasses have been expanded recently due to their wide applications in optics on board space craft, in image guides for reactor inspection, in optical fiber wave guide and in immobilization of high level radioactive wastes [10][11][12].…”

“…Generally, exposure of high-energy ionizing radiation (such as crays, UV light, X-rays) on materials including glasses produces various interesting changes in their properties, which include chemical, electrical, magnetic, mechanical as well as optical properties [11,12].…”