Photo induced effects in Bi/As2Se3 bilayer thin films

Ramakanta Naik, Vinod Madhavan, C. Kumar, R. Ganesan, K. S. Sangunni

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publicationAIP Conference Proceedings
Pages534-535
Number of pages2
Volume1512
DOIs
Publication statusPublished - 2013
Externally publishedYes
Event57th DAE Solid State Physics Symposium 2012 - Bombay, Mumbai, India
Duration: 3 Dec 20127 Dec 2012

Other

Other57th DAE Solid State Physics Symposium 2012
CountryIndia
CityBombay, Mumbai
Period3/12/127/12/12

Fingerprint

bleaching
photoelectron spectroscopy
thin films
high vacuum
x rays
evaporation
matrices
wavelengths
lasers

Keywords

  • Amorphous materials
  • Optical properties
  • Thin films
  • XPS

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Naik, R., Madhavan, V., Kumar, C., Ganesan, R., & Sangunni, K. S. (2013). Photo induced effects in Bi/As2Se3 bilayer thin films. In AIP Conference Proceedings (Vol. 1512, pp. 534-535) https://doi.org/10.1063/1.4791147

Photo induced effects in Bi/As2Se3 bilayer thin films. / Naik, Ramakanta; Madhavan, Vinod; Kumar, C.; Ganesan, R.; Sangunni, K. S.

AIP Conference Proceedings. Vol. 1512 2013. p. 534-535.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Naik, R, Madhavan, V, Kumar, C, Ganesan, R & Sangunni, KS 2013, Photo induced effects in Bi/As2Se3 bilayer thin films. in AIP Conference Proceedings. vol. 1512, pp. 534-535, 57th DAE Solid State Physics Symposium 2012, Bombay, Mumbai, India, 3/12/12. https://doi.org/10.1063/1.4791147
Naik R, Madhavan V, Kumar C, Ganesan R, Sangunni KS. Photo induced effects in Bi/As2Se3 bilayer thin films. In AIP Conference Proceedings. Vol. 1512. 2013. p. 534-535 https://doi.org/10.1063/1.4791147
Naik, Ramakanta ; Madhavan, Vinod ; Kumar, C. ; Ganesan, R. ; Sangunni, K. S. / Photo induced effects in Bi/As2Se3 bilayer thin films. AIP Conference Proceedings. Vol. 1512 2013. pp. 534-535
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