Scientific journal
Название журнала на английском
ISSN 2500-0802
ПИ №ФС77-61154

Personal portfolio

INVESTIGATION OF STRUCTURAL AND OPTICAL PROPERTIES OF LITHIUM-PHOSPHATE GLASSES

Olshin P.K. 1 Kireev A.A. 1 Povolotskiy A.V. 1 Manshina A.A. 1 Sokolov I.A. 1
1 St.Petersburg State University
Lithium-phosphate glasses (Li2O)x-(P2O5)1-x (х=0,40;0,43; 0,49; 0,52; 0,55) were synthesized by using Li2CO3 and (NH4)H2PO4. Structural properties of the glasses and its dependence from the glass composition were investigated by Raman spectroscopy. It was found that increasing of Li2O content leads to appearance of bands induced by pyrophosphate group oscillation. Decreasing ofmethaphosphate oscillation bands is observed. A maximum of symmetric out-of-circle stretching of PO2 band is displaced in low-frequency region too. Optical properties of glasses – refractive index and a position of the edge of the fundamental absorbance were determined for each sample. Composition dependences of the optical properties has two regions which demonstrate different behavior.