Low temperature thermoluminescence behaviour of Y2O3 nanoparticles

Date

2019-01-01

Author

Delice, S.
IŞIK, MEHMET
Hasanlı, Nızamı

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Y2O3 nanoparticles were investigated using low temperature thermoluminescence (TL) experiments. TL glow curve recorded at constant heating rate of 0.4 K/s exhibits seven peaks around 19, 62, 91, 115, 162, 196 and 215 K. Activation energies and characteristics of traps responsible for observed curves were revealed under the light of results of initial rise analyses and T-max-T-stop experimental methods. Analyses of TL curves obtained at different stopping temperatures resulted in presence of one quasi-continuously distributed trap with activation energies increasing from 18 to 24 meV and six single trapping centers at 49, 117, 315, 409, 651 and 740 meV. Activation energies of all revealed centers were reported in the present paper. Structural characterization of Y2O3 nanoparticles was accomplished using X-ray diffraction and scanning electron microscopy measurements. (C) 2019 Chinese Society of Rare Earths. Published by Elsevier B.V. All rights reserved.

Subject Keywords

Y2O3, Luminescence, Thermoluminescence, Rare earths, Defects

URI

https://hdl.handle.net/11511/41461

Journal

JOURNAL OF RARE EARTHS

DOI

https://doi.org/10.1016/j.jre.2018.06.005

Collections

Department of Physics, Article

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Citation Formats

S. Delice, M. IŞIK, and N. Hasanlı, “Low temperature thermoluminescence behaviour of Y2O3 nanoparticles,” JOURNAL OF RARE EARTHS, pp. 19–23, 2019, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/41461.