Review Article
Open Access
Spectroscopic Studies on CuO Doped Li2O-ZrO2-SiO2 Glass Ceramics
Ch. Srinivasa Rao1, T. Srikumar1, S. Shantkriti2 and M.C. Rao1*
1Department of Physics, Andhra Loyola College, Vijayawada - 520008, A.P., India
2PG & Research Department of Biotechnology, National College (Autonomous), Dindigul Road, Tiruchirapalli- 620001, Tamilnadu, India
Abstract
Li2O–ZrO2–SiO2 glasses have been synthesized and subsequently crystallized with
different concentrations of CuO (0 to 0.3 mol % in the steps of 0.05) as nucleating agent. The X-ray
diffraction (XRD), scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy
(FTIR) studies have been carried out to explore the influence of copper valence states and their
coordination with oxygen on structural and optoelectronic aspects of the samples and to examine the
suitability of these materials for optically operated devices. XRD pattern revealed the presence of clear
peaks at 2θ = 31.34o and 36.59o corresponding to LiCuO2 orthorhombic crystal phase. SEM indicated
that the samples contain well defined, randomly distributed crystals of different sizes ingrained in
glassy matrix. FTIR revealed the presence of various bands due to bridging of oxygen perpendicular to
Si–Si axis within the Si−O−Si plane.
Keywords
Li2O–ZrO2–SiO2 glasses, melt quenching, XRD, SEM and FTIR.
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