Thermoluminescence study of ZnS:Cu nanoparticles |
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Authors: | Jagjeet Kaur Vikas Dubey N. S. Suryanarayana N. Kumar Swamy S. V. N. Pammi P. V. Ramakrishna |
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Affiliation: | 1. Department of Physics, Government Vishwanath Yadav Tamaskar Post Graduate Autonomous College, Durg, 491001, C.G., India 2. Material Science Research Lab, ITM University, Gurgaon, 122017, Haryana, India 3. Department of Physics, Andhra University, A.P, 530003, India
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Abstract: | In this paper, we report on the TL glow curves and kinetic parameters, activation energy, order of kinetics, and the frequency factor of copper-doped zinc sulfide nanophosphor under UV irradiations. The sample was prepared by the chemical precipitation method; thereafter, the TL glow curves were recorded for different doses of UV exposure at a heating rate of 10 °C/s. The synthesized nanophosphor exhibited TL glow peaks at 241, 255, and 281 °C for the heating rate 10 °C/s at different doses of 5, 10, and 15 min of UV exposure. The kinetic parameters activation energy E, the order of kinetics b, and the frequency factor S of synthesized nanophosphor of ZnS:Cu have been calculated by using a peak shape method while the trap depth was determined using different formulae. The sample was characterized by XRD (X-ray diffraction) and SEM (scanning electron microscope). |
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