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Spectroscopy study of Bi12GeO20 single crystals

Z. Ž. LAZAREVIĆ1,* , S. KOSTIĆ1, V. RADOJEVIĆ2, M. J. ROMČEVIĆ1, B. HADŽIĆ1, J. TRAJIĆ1, N. Ž. ROMČEVIĆ1

Affiliation

  1. Institute of Physics, University of Belgrade, P.O. Box 68, Belgrade, Serbia
  2. Faculty of Technology and Metallurgy, University of Belgrade, Belgrade, Serbia

Abstract

In this work single crystals of bismuth germanium oxide (Bi12GeO20) have been grown by the Czochralski method. Growth conditions were studied. The critical diameter and the critical rate of rotation were calculated. Suitable polishing and etching solutions were determined. The structure of the Bi12GeO20 has been investigated by X-ray diffraction, Raman and FTIR spectroscopy. The obtained results are discussed and compared with published data. On the basis of the measurements by Raman spectroscopy, we observed 15 modes..

Keywords

Bi12GeO20, Czochralski method, XRD, Raman spectroscopy, FTIR.

Citation

Z. Ž. LAZAREVIĆ, S. KOSTIĆ, V. RADOJEVIĆ, M. J. ROMČEVIĆ, B. HADŽIĆ, J. TRAJIĆ, N. Ž. ROMČEVIĆ, Spectroscopy study of Bi12GeO20 single crystals, Optoelectronics and Advanced Materials - Rapid Communications, 7, 1-2, January-February 2013, pp.58-61 (2013).

Submitted at: Oct. 4, 2012

Accepted at: Feb. 20, 2013