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https://doi.org/10.37358/Rev.Chim.1949

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Revista de Chimie (Rev. Chim.), Year 2008, Volume 59, Issue 3, 300-303

https://doi.org/10.37358/RC.08.3.1752

Silviu Jipa, Wilhelm Kappel, Traian Zaharescu, Laura Monica Gorghiu1, Crinela Dumitrescu

Activation Energy from Thermoluminescence of K2B4O7 Doped with Cu and Ag

Abstract:

Most of the insulating solids have in their structure point defects, naturally occurring or artificially created, which induce electronic states in the forbidden band. These defects are strongly related with the thermoluminescence (TL) phenomenon. There are several models described in the literature which explain the basic principles of the TL process using charge carrier traps induced by impurities named dopants. This paper presents an example of analyzing the thermolumoinescence glow curves obtained for potassium tetraborate undoped and doped with Ag and Cu, respectively. On the base of these curves the kinetic parameters were calculated using some of the methods described in the literature. In addition, a comparison of the results obtained by applying these methods for K2B4O7 doped with Ag and Cu (1.2 and 1.5 mole %) samples is presented.

Keywords:
potassium tetraborate; thermoluminescence; activation energy

Issue: 2008, Volume 59, Issue 3
Pages: 300-303
Publication date: 2008/4/9
https://doi.org/10.37358/RC.08.3.1752
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