Low temperature thermoluminescence behaviour of Y2O3 nanoparticles
来源期刊：JOURNAL OF RARE EARTHS2019年第1期
论文作者：S.Delice M.Isik N.M.Gasanly
文章页码：19 - 23
摘 要：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 Tmax-Tstop 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 at49, 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.
S.Delice1，M.Isik2，N.M.Gasanly3,4
1. Department of Physics, Hitit University2. Department of Electrical and Electronics Engineering, Atilim University3. Department of Physics, Middle East Technical University4. Virtual International Scientific Research Centre, Baku State University
摘 要：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 Tmax-Tstop 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 at49, 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.
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