Photo induced effects on the optical properties of As20Sb20S60 thin films

Naik, Ramakanta and Vinod, EM and Parida, Sanjit and Ganesan, R and Sangunni, KS (2015) Photo induced effects on the optical properties of As20Sb20S60 thin films. In: International Conference on Materials Science and Technology (ICMST), JUN 10-14, 2012, Kerala, INDIA.

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Abstract

The thermally evaporated As20Sb20S60 amorphous 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 and Raman 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 and Raman shift supports the optical changes happening in the film due to light exposure.

Item Type:	Conference Proceedings
Series.:	IOP Conference Series-Materials Science and Engineering
Publisher:	IOP PUBLISHING LTD
Additional Information:	Copyright for this article is belongs to the IOP PUBLISHING LTD, DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	13 May 2015 07:32
Last Modified:	13 May 2015 07:32
URI:	http://eprints.iisc.ac.in/id/eprint/51538

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