Optical properties change of Ge12.5Sb25Se 62.5 thin films by laser irradiation

Ramakanta Naik, Vinod Madhavan, C. Kumar, R. Ganesan

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

Abstract

The thermally evaporated Ge12.5Sb25Se62.5 thin films of 800 nm thickness were 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 increased due to photo induced effects along with the decrease 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.

Original languageEnglish
Title of host publicationAIP Conference Proceedings
Pages622-623
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

optical properties
irradiation
thin films
lasers
x rays
infrared spectroscopy
photoelectron spectroscopy
disorders
diffraction

Keywords

  • Optical properties
  • Thin films
  • XPS

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Naik, R., Madhavan, V., Kumar, C., & Ganesan, R. (2013). Optical properties change of Ge12.5Sb25Se 62.5 thin films by laser irradiation. In AIP Conference Proceedings (Vol. 1512, pp. 622-623) https://doi.org/10.1063/1.4791191

Optical properties change of Ge12.5Sb25Se 62.5 thin films by laser irradiation. / Naik, Ramakanta; Madhavan, Vinod; Kumar, C.; Ganesan, R.

AIP Conference Proceedings. Vol. 1512 2013. p. 622-623.

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

Naik, R, Madhavan, V, Kumar, C & Ganesan, R 2013, Optical properties change of Ge12.5Sb25Se 62.5 thin films by laser irradiation. in AIP Conference Proceedings. vol. 1512, pp. 622-623, 57th DAE Solid State Physics Symposium 2012, Bombay, Mumbai, India, 3/12/12. https://doi.org/10.1063/1.4791191
Naik R, Madhavan V, Kumar C, Ganesan R. Optical properties change of Ge12.5Sb25Se 62.5 thin films by laser irradiation. In AIP Conference Proceedings. Vol. 1512. 2013. p. 622-623 https://doi.org/10.1063/1.4791191
Naik, Ramakanta ; Madhavan, Vinod ; Kumar, C. ; Ganesan, R. / Optical properties change of Ge12.5Sb25Se 62.5 thin films by laser irradiation. AIP Conference Proceedings. Vol. 1512 2013. pp. 622-623
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