A new evaluation technique for analyzing the thermoluminescence glow curve and calculating the trap parameters

• Published in: Thermochimica acta Vol. 429; no. 2; pp. 143 - 147
• Main Author: Rasheedy, M.S.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 15.05.2005; Elsevier Science
• Subjects: Condensed matter: electronic structure, electrical, magnetic, and optical properties; Exact sciences and technology; Glow peaks; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation; Other luminescence and radiative recombination; Physics; Thermoluminescence; Trapping parameters; Zirconium oxide; Glow peaks; Zirconium oxide; Trapping parameters; 78.60.Kn; Thermoluminescence; Charge carrier trapping; Zirconium oxides; 78.60.Kn Thermoluminescence
• ISSN: 0040-6031; 1872-762X
• DOI: 10.1016/j.tca.2005.03.006

A step-fitting simulation technique was developed for the thermoluminescence (TL) glow-curve analysis and the kinetic trap parameters determination. These parameters include the order of kinetics b, the activation energy E (eV) and the pre-exponential factor S″ (s −1). A general equation was developed to estimate the order of kinetics b. The characteristics point of this equation is that any set of three data points in a TL glow curve can yield the kinetics order. Using this characteristic, an improved procedure was suggested to separate a composite glow curve, which includes several overlapping peaks, into its individual components and to obtain the trap parameters of the glow peaks. The program was used to analyze the TL glow curve of the UV dosimetric material pure zirconium oxide (ZrO 2).