European Journal of Chemistry

Exploring the thermoluminescent characteristics of nano α-Al2O3: Influence of heating rate on glow peaks and activation energy

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Published: Jun 30, 2024
DOI: https://doi.org/10.5155/eurjchem.15.2.149-154.2552
Keywords:
TL glow curve, Frequency factor, Nano alpha-Al2O3, Activation energy, Thermoluminescence, Variable heating rate method
Section
Research Article
Issue
Vol. 15 No. 2 (2024): June 2024
Dates
Received 2024-03-21
Accepted 2024-05-04
Published 2024-06-30
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Sahib Mammadov
Institute of Radiation Problems, Ministry of Science and Education, 9, B. Vahabzade Str., Baku, 1143, Azerbaijan
https://orcid.org/0000-0002-4547-4491
Muslim Gurbanov
Institute of Radiation Problems, Ministry of Science and Education, 9, B. Vahabzade Str., Baku, 1143, Azerbaijan
https://orcid.org/0000-0003-3321-1026
Ahmad Ahadov
Institute of Radiation Problems, Ministry of Science and Education, 9, B. Vahabzade Str., Baku, 1143, Azerbaijan
https://orcid.org/0000-0002-6039-8714

Abstract

The thermoluminescence (TL) characteristics of nano α-Al2O3 (40 nm) under varying heating rates have been investigated. The presented data reveal a significant displacement of glow peaks to higher temperatures as the heating rate increases, accompanied by variations in the height of the TL peaks. When the glow curve plot represents the TL intensity in counts/K against temperature (K), there is a noticeable shift towards higher temperatures with increasing heating rate. The activation energy (E) calculated using the two different heating rate methods is 1.08±0.7 eV. The ln(T2M/β) graph versus 1/kTM yields an activation energy value of E = 1.15±0.1 eV. This result agrees with data from the existing literature supporting the observed thermoluminescent behaviour of nano α-Al2O3 (40 nm) at different heating rates. The TL response and luminescence efficiency are examined in relation to changes in heating rate, revealing insights into thermal quenching phenomena. Additionally, activation energy calculations based on different heating rates are explored to understand the underlying mechanisms influencing TL behavior.


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Mammadov, S.; Gurbanov, M.; Ahadov, A. Exploring the Thermoluminescent Characteristics of Nano α-Al2O3: Influence of Heating Rate on Glow Peaks and Activation Energy. Eur. J. Chem. 2024, 15, 149-154.

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Supporting Agencies

The Institute of Physics, Ministry of Education and Science of the Azerbaijan Republic, Azerbaijan.
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