Journal of Fluorescence

, Volume 28, Issue 2, pp 597–603 | Cite as

Analytical Expressions for the Mixed-Order Kinetics Parameters of TL Glow Peaks Based on the two Heating Rates Method

  • Mufeed Maghrabi
  • Tariq Al-Abdullah
  • Ziad Khattari


The two heating rates method (originally developed for first-order glow peaks) was used for the first time to evaluate the activation energy (E) from glow peaks obeying mixed-order (MO) kinetics. The derived expression for E has an insignificant additional term (on the scale of a few meV) when compared with the first-order case. Hence, the original expression for E using the two heating rates method can be used with excellent accuracy in the case of MO glow peaks. In addition, we derived a simple analytical expression for the MO parameter. The present procedure has the advantage that the MO parameter can now be evaluated using analytical expression instead of using the graphical representation between the geometrical factor and the MO parameter as given by the existing peak shape methods. The applicability of the derived expressions for real samples was demonstrated for the glow curve of Li2B4O7:Mn single crystal. The obtained parameters compare very well with those obtained by glow curve fitting and with the available published data.


Mixed-order kinetics Kinetics parameters Li2B4O7:Mn single crystal Two heating rates method 



One of the authors (M. Maghrabi) is grateful to Prof. T. Karali for providing him with the experimental glow curves used in the present study. The financial support from the Hashemite University/Jordan is highly appreciated.


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • Mufeed Maghrabi
    • 1
  • Tariq Al-Abdullah
    • 1
  • Ziad Khattari
    • 1
  1. 1.Physics DepartmentHashemite UniversityZarqaJordan

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