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Effect of Te Addition into As2Se3 Thin Film: Optical Property Study by FTIR and XPS.

Panda, Tribikram and Naik, R and Chinnaiyah, S and Ganesan, R (2015) Effect of Te Addition into As2Se3 Thin Film: Optical Property Study by FTIR and XPS. In: 59th DAE Solid State Physics Symposium, DEC 16-20, 2014, VIT Univ, Vellore, INDIA.

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Official URL: http://dx.doi.org/10.1063/1.4917907


In the present work, we report the effect of Te deposition onto As2Se3 film which affects the optical properties. The Te/As2Se3 film was illuminated with 532 nm laser to study the photo induced diffusion. The prepared As2Se3, Te/As2Se3 films were characterized by X-ray diffraction which show a completely amorphous nature. On the basis of optical transmission data carried out by Fourier Transform infrared Spectroscopy, a non direct transition was found for these films. The optical bandgap is found to be decreased with Te deposition and photo darkening phenomena is observed for the diffused film. The change in the optical constants are also supported by the corresponding change in different types of bonds which are being analyzed by X-ray photoelectron spectroscopy.

Item Type: Conference Proceedings
Series.: AIP Conference Proceedings
Additional Information: Copy right for this article belongs to the AMER INST PHYSICS, 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
Keywords: Chalcogenide; Thin film; Optical properties; FTIR
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 14 Jan 2016 04:29
Last Modified: 14 Jan 2016 04:29
URI: http://eprints.iisc.ac.in/id/eprint/53119

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