Thermal and Optical Study of Te15(Se100-xBix)85 (x = 0, 1, 3) Chalcogenide Glasses
| Автори | Kameshwar Kumar1, Pankaj Sharma2, S.S. Bhatt3, Nagesh Thakur1 |
| Приналежність | 1 Department of Physics, H.P. University, Shimla, 171005, India 2 Department of Physics, Jaypee University of Information Technology, Waknaghat, Solan, H.P. (173215), India 3 Department of Chemistry, H.P. University, Shimla, 171005, India |
| Е-mail | kameshwarkumar01@gmail.com |
| Випуск | Том 3, Рік 2011, Номер 1, Part 2 |
| Дати | Received 04 February 2011, in final form 27 April 2011, published online 08 May 2011 |
| Посилання | Kameshwar Kumar, Pankaj Sharma, S.S. Bhatt, Nagesh Thakur, J. Nano- Electron. Phys. 3 No1, 404 (2011) |
| DOI | |
| PACS Number(s) | 65.90. + i, 78.20.Ci |
| Ключові слова | Differential thermal analysis, Glass transition temperature (3) , Optical band gap (7) , Refractive index and thermal stability. |
| Анотація |
The present paper reports the thermal and optical study of Te15(Se100–xBix)85 (x = 0, 1, 3 at. %) glassy alloys. The glass transition temperature (Tg), crystalli-zation temperature (Tc) and melting temperature (Tm) are found from the DTA plots taken at different heating rates of 10, 15, 20 and 25 K/min. The glass transition temperature and melting temperature have been found to increase and the crystallization temperature has been found to decrease with increase in Bi content (x). Refractive index and optical energy gap of the films have been calculated from the transmission spectra taken in the spectral range 400-2300 nm. The refractive index decreases with wavelength and the optical band gap decreases with increase in Bi content. |
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