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SbxSe100-x system (0 ≤ x ≤ 8) studied by DSC and Raman spectroscopy

J. HOLUBOVÁ1,* , Z. ČERNOŠEK1, E. ČERNOŠKOVÁ2

Affiliation

  1. Department of General and Inorganic Chemistry, University of Pardubice, nám. Legii 565, CZ-532 10 Pardubice, Czech Republic
  2. Joint Laboratory of Solid State Chemistry of Institute of Macromolecular Chemistry of Czech Academy of Sciences and University of Pardubice, Studentská 84, CZ-532 10 Pardubice, Czech Republic

Abstract

The SbxSe100-x glass-forming system (x = 0, 1, 2, 4, and 8 at. %) was studied by conventional differential scanning calorimetry (DSC), Step Scan DSC and Raman spectroscopy. Glass transition temperature, Tg, as well as isobaric heat capacity change, ΔCp, were determined. Crystallization of Sb2Se3 from incongruent undercooled melt, followed by trigonal selenium crystallization was observed. The crystallization kinetics of Sb2Se3 was studied in details. Sb2Se3 crystallizes from incongruent melt at Tc = 107±2 oC with crystallization enthalpy ΔHc(Sb2Se3) = -52± J/g. Johnson- Mehl-Avrami kinetics of crystallization with Avrami kinetic exponent close to 3 was found.

Keywords

DSC, StepScan DSC, Raman spectroscopy, Selenium, Sb-Se system, Glass transition, Crystallization.

Citation

J. HOLUBOVÁ, Z. ČERNOŠEK, E. ČERNOŠKOVÁ, SbxSe100-x system (0 ≤ x ≤ 8) studied by DSC and Raman spectroscopy, Optoelectronics and Advanced Materials - Rapid Communications, 1, 12, December 2007, pp.663-666 (2007).

Submitted at: Oct. 25, 2007

Accepted at: Nov. 27, 2007