Photo induced Effects on the Optical Properties of Sb40Se20S40 Thin Film

Naik, Ramakanta and Kumar, C and Parida, SanjitK and Ganesan, R (2012) Photo induced Effects on the Optical Properties of Sb40Se20S40 Thin Film. In: 56th DAE-Solid State Physics Symposium (SSPS) , DEC 19-23, 2011 , SRM Univ, Kattankulathur, INDIA, pp. 559-560.

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Abstract

The thermally evaporated amorphous Sb40Se20S40 thin film of 800 nm thickness was subjected to light exposure for photo induced studies. The as-prepared and illuminated thin films were studied by X-ray diffraction, Fourier Transform Infrared Spectroscopy and X-ray Photoelectron Spectroscopy. The optical band gap was reduced due to photo induced effects along with the increase in disorder. These optical properties changes are due to the change of homopolar bond densities. The core level peak shifting in XPS spectra supports the optical changes happening in the film due to light exposure.

Item Type:	Conference Proceedings
Series.:	AIP Conference Proceedings -1447
Publisher:	AMER INST PHYSICS
Additional Information:	56th DAE-Solid State Physics Symposium (SSPS), SRM Univ, Kattankulathur, INDIA, DEC 19-23, 2011
Keywords:	Chalcogenides;Thin films;Optical properties;XPS
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	29 Nov 2012 08:38
Last Modified:	29 Nov 2012 08:53
URI:	http://eprints.iisc.ac.in/id/eprint/45117

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