| Autor: |
Rajamohan Ganesan, K. S. Sangunni, E. M. Vinod, C. Kumar, Ramakanta Naik |
| Rok vydání: |
2013 |
| Předmět: |
|
| Zdroj: |
AIP Conference Proceedings. |
| ISSN: |
0094-243X |
| DOI: |
10.1063/1.4791147 |
| Popis: |
Bilayer thin films of Bi/As2Se3 were prepared from Bi and As2Se3 by thermal evaporation technique under high vacuum. We have irradiated the films by using a laser of 532 nm wavelength to study photo diffusion of Bi into As2Se3. The diffusion of Bi into As2Se3 matrix increases the optical band gap producing photo bleaching effect. The changes were characterized by Fourier Transform Infrared and X-ray Photoelectron Spectroscopy (XPS) which shows the photo bleaching of the illuminated films. Optical constants were calculated by analyzing the transmission spectra. The core level peaks in XPS spectra give information about different bond formation. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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