Spectroscopic properties of gamma irradiated TiO2 doped lithium phosphate glasses

Autor:	Mohamed A. Marzouk, N. A. Ghoneim, F.M. EzzElDin, T. Daoud
Rok vydání:	2012
Předmět:	LITHIUM PHOSPHATE chemistry.chemical_compound Materials science chemistry Doping Analytical chemistry General Physics and Astronomy Infrared spectroscopy Irradiation Phosphate Absorption (electromagnetic radiation) Gamma irradiation Ion
Zdroj:	Indian Journal of Physics. 87:39-47
ISSN:	0974-9845 0973-1458
DOI:	10.1007/s12648-012-0177-0
Popis:	Optical absorption spectra of undoped and TiO2-doped lithium phosphate glasses were measured before and after successive gamma irradiation. Undoped lithium phosphate glasses show strong UV absorption, while TiO2-doped samples exhibit surplus two broad visible bands due to the presence of Ti3+ ions in predominant ratio. Gamma irradiation produces UV and visible induced bands but the presence of TiO2 seems to cause some shielding effects towards successive gamma irradiation. Infrared absorption spectral measurements indicate the presence of characteristic phosphate groups and the effect of gamma irradiation is limited to small changes in the intensities of some absorption bands. The experimental results are interpreted on the bases of current views on the structure of the studied host glass in relation to properties studied.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::49e7697df4a3f9ee8e51d1e045d7027c https://doi.org/10.1007/s12648-012-0177-0 Zobrazit plný text záznamu Full text from SpringerLink