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Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.50 [2012] >
IJPAP Vol.50(06) [June 2012] >
| Title: | Optical and infrared properties of lithium diborate glasses doped with copper oxide: Effect of gamma irradiation |
| Authors: | El-Batal, Hatem A
El-Mandouh, Zeinab S
Zayed, Hamdia A
Marzouk, Samir Y
El-Komy, Gihan M
Hosny, Ahmed |
| Keywords: | Lithium borate glass
Copper ions
UV-visible
IR spectra
Gamma rays |
| Issue Date: | Jun-2012 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | A series of lithium diborate
glasses containing successive CuO contents have been prepared by conventional
melt annealing technique. Optical and infrared spectral properties have been
measured before and after successive gamma irradiation to study the effect of
gamma irradiation on the prepared glasses. Cu-doped samples show the same
strong UV absorption as the undoped sample beside a characteristic broad
visible band around 772 nm with marked splitting into four peaks at 614, 656,
774 and 1064 nm in higher CuO contents. Gamma irradiation of undoped lithium
borate glass causes the generation of induced absorption bands but the
introduction of CuO content causes some shielding behaviour towards successive
gamma irradiation. Infrared absorption spectra of the undoped and CuO-doped
glasses show characteristic vibrational absorption bands related to triangular
and tetrahedral borate units. The addition of CuO in lithium borate glasses
causes minor changes on the intensities of the IR bands but their numbers and
positions are retained. The same limited effect is observed with gamma
irradiation on the measured IR bands. |
| Page(s): | 398-404 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1041 (Online); 0019-5596 (Print) |
| Source: | IJPAP Vol.50(06) [June 2012]
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