Low temperature thermoluminescence of Gd2O3 nanoparticles using various heating rate and T-max - T-exc. methods

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2019-03-01

Author

Delice, Serdar
IŞIK, MEHMET
Hasanlı, Nızamı

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Thermoluminescence (FL) measurements for Gd2O3 nanoparticles were carried out for various heating rates between 0.3 and 0.8 K/s at low temperatures (10-280 K). TL spectrum exhibited two observable and one faint peaks in the temperature region of 10-100 K, and four peaks in the temperature region of 160-280 K. Heating rate analysis was achieved to understand the behaviors of trap levels. It was seen that the peak maximum temperatures and TL intensities of all peaks increase with increasing heating rate. This behavior was ascribed to anomalous heating rate effect. T-max - T(exc )analysis was accomplished for TL, peaks at relatively higher temperature region to reveal the related traps depths. T-max - T-exc plot presented a staircase structure indicating that the TL glow curve is composed of well separated glow peaks. Mean activation energies of trapping centers corresponding to these separated peaks were found as 0.43, 0.50, 0.58 and 0.80 eV.

Subject Keywords

General Physics and Astronomy

URI

https://hdl.handle.net/11511/44089

Journal

RESULTS IN PHYSICS

DOI

https://doi.org/10.1016/j.rinp.2019.02.025

Collections

Department of Physics, Article

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Citation Formats

S. Delice, M. IŞIK, and N. Hasanlı, “Low temperature thermoluminescence of Gd2O3 nanoparticles using various heating rate and T-max - T-exc. methods,” RESULTS IN PHYSICS, pp. 1809–1813, 2019, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/44089.