Eur. Phys. J. Appl. Phys. 52, 20303 (2010)
https://doi.org/10.1051/epjap/2010142

Study of crystallization rate constant of (Se₈₀Te₂₀)_100-xAg_x chalcogenide glasses

Semiconductors Laboratory, Department of Applied Physics, Guru Nanak Dev University, Amritsar, 143005 Punjab, India

Corresponding author: rthangaraj@rediffmail.com

Received: 25 February 2010
Revised: 28 April 2010
Accepted: 4 August 2010
Published online: 8 October 2010

Abstract

The present paper reports the preparation of (Se₈₀Te₂₀)_100-xAg_x (0 ≤ x ≤ 4) chalcogenide glasses in bulk by using melt quenching technique. DSC runs of these samples have been taken at four different heating rates (5, 10, 15, 20 K/min). The variation in crystallization temperature T_c with Ag concentration at different heating rates has been studied. A strong co-relation between the pre-exponential factor K₀ of rate constant K of crystallization and activation energy of crystallization E_c has been observed. The variation of rate constant K with composition and the dependence of E_c with Ag concentration have been studied.