Structure and Optical Energy Gap Measurements in AsTeCd Chalcogenide Thin Films
✍ Scribed by Rao, L. V. ;Naidu, B. S. ;Reddy, P. J.
- Publisher
- John Wiley and Sons
- Year
- 1982
- Tongue
- English
- Weight
- 173 KB
- Volume
- 74
- Category
- Article
- ISSN
- 0031-8965
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📜 SIMILAR VOLUMES
The results are presented of a study of the electrical and optical properties of vacuum evaporated amorphous thin films in the Ge0S0Se system. The effect of Te isoelectronic substitution either completely for S to give Ge 2.5 Te 2.5 Se 95 and Ge 5 Te 5 Se 90 or partially for Se to yield Ge 2.
Optical transmittivity in the UV-VIS region of thermally evaporated amorphous As 2 S 3 , and As 2 Se 3 thin films was measured in the temperature region 15 K Ͻ T Յ 300 K: The temperature dependence of the optical gap E g T was found to be in agreement with Fan's one-phonon approximation or with Cody