Fourier Raman spectroscopy studies of the As40S60-xSex glasses

Semiconductor Physics, Quantum Electronics & Optoelectronics, 4 (3), P. 210-213 (2001)
https://doi.org/10.15407/spqeo4.03.210

Semiconductor Physics, Quantum Electronics & Optoelectronics. 2001. V. 4, N 3. P. 210-213.

PACS: 78.30 L

Fourier Raman spectroscopy studies of the As₄₀S_60-_xSe_x glasses

A.V. Stronski 1, M. Vlček 2, P.F. Oleksenko 1

1 - Institute of Semiconductor Physics, NAS Ukraine,
2 - University of Pardubice, Pardubice, Czech Republic.

Abstract. The present paper is concerned with the investigations of As₄₀S_60-xSe_x glasses with the help of Fourier Raman spectroscopy. The results of Raman spectroscopy investigations indicate increased presence of non-stoichiometric Se_n, As₄S₄ fragments for intermediate compositions of As₄₀S_60-xSe_x glasses, which in combination with composition dependencies of molar volume, previous results on investigations of optical and thermal properties of As₄₀S_60-xSe_x can be explained by the small deviation from the statistical one under the isovalent substitution of Se on S in As₄₀S_60-xSe_x glasses with the composition change.

Keywords: As40S60-xSex glasses, Raman spectra.

Paper received 16.03.01; revised manuscript received 02.06.01; accepted for publication 13.07.01.

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