Solid State Science and Technology, Vol. 18, No 2 (2010) 84-90
OPTICAL AND STRUCTURAL PROPERTIES OF
S.M. Iskandar1,2,, M.K. Halimah1, W.M. Daud1, H.A. A. Sidek1,
M.D. Khairul Zaman3
1Physics Department, Universiti Putra Malaysia,
43400 UPM Serdang, Selangor.
2School of Physics, Universiti Sains Malaysia, 1800 USM, Penang
3Radiation Processing Technology, Malaysian Nuclear Agency,
43000 Kajang, Selangor
Optical and structural properties of [TeO2]y [(B2O3)1-x (PbO)x]1-y glasses of different composition have been studied using UV-Vis, Raman and XRD spectroscopic techniques. The UV optical absorption was recorded at room temperature in the wavelength range of 200 to 800 nm, while the XRD patterns of as-received samples was verified at 2θ = (5 - 80 deg). Eventually, values of the optical energy gap are calculated and found to be dependent on the glass composition. Furthermore, the XRD diffractograms exhibit a wide smooth halo, which is a fingerprint of amorphous materials and some strong narrow diffraction lines corresponding to crystalline of α-TeO2. The Raman spectroscopy measurement shows strong existence of Pb group, O-B-O bending and O-Te-O stretching in lattice vibrations.
 Joseph, C.M., P.R. Binu, R. Shreekrisnakumar and C.S. Menon, (2001). Mater. Lett. 50: 251-253.
 Vijaya Prakash, G., D. Narayana Rao and A.K. Bhatnagar, (2001). Solid State Comm., 119: 39-44.
 Khaled, M.A., H. Elzahed, S.A. Fayek and M.M. El-Ocker, (1994). Mat. Chem. and Phys., 37: 329-332.
 H. Hirashima, D. Arai, T. Yoshida, (1985) J. Am. Ceram. Soc. 68 486.
 H. Gahlman, R. Bruckner, (1974) J. Non-Cryst. Solids 13 355.
 J.E. Standworth, (1961) J. Soc. Glass Technol. 36 271.
 S.E. Van Kirk, S.W. Martin, (1992) J. Am. Ceram. Soc. 75 1028.
 J.F. DeNatale, D.G. Howitt, (1984) Nucl. Instr. and Meth. B 229 489.
 G.J. Exarhos, (1984) Nucl. Instr. and Meth. B 229 498.
 R. Cases, D.L. Griscom, (1984) Nucl. Instr. and Meth. B 229 503.
 C.A. Worrel, J. Henshell, (1978) J. Non-Cryst. Solids 29 283.
 Khanna, S.S. Bhatti, K.J. Singh, K.S. Thind, (1996) Nucl. Instr. and Meth. B 114 217.
 K. Singh, H. Singh, V. Sharma, R. Nathuram, A. Khanna, R. Kumar, S.S. Bhatti, H.S. Sahota, (2002) Nucl. Instr. and Meth. B 194 1.
 H. Singh, K. Singh, G. Sharma, R. Nathuram, H.S. Sahota, (2002) Nucl. Sci. Eng. 142 342.
 Gopi Sharma, Kulwant Singh, Manupriya, Shaweta Mohan, Harvinder Singh, Sukhleen Bindra, (2006) Radiation Physics and Chemistry 75 959-966.
 Takao Sekiya, Norio Mochida, Atsushi Ohtsuka and Ayako Soejima, (1992) Journal of Non-Crystalline Solids 151 222-228.
. M.A.P. Silvaa, Y. Messaddeqa, S.J.L. Ribeiroa, M. Poulainb, F. Villainc, V. Brioisd (2001) Journal of Physics and Chemistry of Solids 62 1055-1060.