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Study of the structural units in some chalcogenides of the As−Sb−S−Se−I system by X-ray and DSC analysis

F. SKUBAN1, S. R. LUKIĆ1,* , D. M. PETROVIĆ1, I. O. GÚTH1, G. R. ŠTRBAC1

Affiliation

  1. Department of Physics, Faculty of Sciences, University of Novi Sad, Trg D. Obradovića 4, 21000 Novi Sad, Serbia

Abstract

The paper describes a study carried out with the aim of establishing the elements of structural network of the fivecomponent non-crystalline samples. X-ray powder diffraction at room temperature and temperatures up to 620 K and differential scanning calorimetry (DSC) studies of the glasses from the pseudo-binary system (As2Se3)100−x(SbSI)x have been realized. On the basis of the obtained results, it was possible to identify the appearance of different structural units in the crystallization processes above glass transition temperature Tg in the materials with various atomic percent of SbSI. The DSC experiments, carried out up to 700 K, showed that the temperature regions of crystallization translates to lower temperatures with increasing SbSI content. Structural unit of antimony-sulfoiodide exists in materials with x≥50 at. %. Thermal analysis showed the presence of two distinctive temperature domains of crystallization of the glasses with 70 and 80 at. % SbSI. Also, partial overlapping of glass transition and crystallization processes were found in the sample with x=80 at. % SbSI..

Keywords

Chalcogenide glass, X-ray diffraction, Structural units, Differential scanning calorimetry.

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

Citation

F. SKUBAN, S. R. LUKIĆ, D. M. PETROVIĆ, I. O. GÚTH, G. R. ŠTRBAC, Study of the structural units in some chalcogenides of the As−Sb−S−Se−I system by X-ray and DSC analysis, Journal of Optoelectronics and Advanced Materials Vol. 9, Iss. 10, pp. 3100-3102 (2007)