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Structural study of Cu photodoped Ge-S glasses

M. BALAKRISHNAN1, M. N. KOZICKI1, C. POWELEIT2, S. BHAGAT3, T. L. ALFORD3, M. MITKOVA1,4,*

Affiliation

  1. Center for Applied Nanoionics, Arizona State University, Tempe, AZ 85287-6206, USA
  2. Department of Physics, Arizona State University, Tempe, AZ 85287- 1504, USA
  3. School of Materials, Arizona State University, Tempe, AZ 85281- 8706, USA
  4. Department of Electrical & Computer Engineering, Boise State University, Boise, ID 83725-2075, USA

Abstract

The products formed by Cu photodiffusion in GeS2 films are investigated. Rutherford backscattering spectrometry shows that for the experimental conditions used photodiffusion results in the introduction of 17.4 at. % Cu into the chalcogenide glass matrix. The diffusion product are analyzed by means of X-ray diffraction which reveals the formation of Cu2GeS3. Raman spectra show the considerable influence of Cu on the structure of the hosting glass which we relate to the incorporation of fourfold coordinated Cu into the glass matrix. Annealing of the films at 3000C and 4300C was also studied to determine the thermal stability of the ternary..

Keywords

Ge-Se glasses, Cu-photodoped, Rutherford backscattering.

Submitted at: July 3, 2007
Accepted at: Oct. 15, 2007

Citation

M. BALAKRISHNAN, M. N. KOZICKI, C. POWELEIT, S. BHAGAT, T. L. ALFORD, M. MITKOVA, Structural study of Cu photodoped Ge-S glasses, Journal of Optoelectronics and Advanced Materials Vol. 9, Iss. 10, pp. 3241-3246 (2007)