Thermoluminescence of Undoped and Cu Doped CdS Nanoparticles
Subhajit Chakraborty1, Ranjit Singha2, Binapani Goswami3

1Subhajit Chakraborty, Department of Physics, Hojai College, Hojai Assam, India.
2Ranjit Singha, Department of Physics, Assam University, Diphu Campus, Diphu, Karbi Anglong, Assam, India.
3Binapani Goswami*, Borboha High School, Borboha, Hojai, Assam, India.
Manuscript received on September 23, 2019. | Revised Manuscript received on October 20, 2019. | Manuscript published on October 30, 2019. | PP: 166-169 | Volume-9 Issue-1, October 2019 | Retrieval Number: A1103109119/2019©BEIESP | DOI: 10.35940/ijeat.A1103.109119
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Abstract: In this paper an attempt has been made to synthesize undoped and 1wt% Cu doped CdS nanoparticles through chemical co-precipitation method. Prepared particles were characterized to explore their structural and thermoluminescence properties. The X-ray diffraction analysis reveals a hexagonal crystal structure at room temperature. The particle sizes are determined by Scherer formula for both undoped and doped CdS nanoparticles of various concentrations. The average grain size of undoped and Cu doped nanoparticles is found to be 32.81nm and 22.3nm respectively. The thermoluminescence studies of these above samples show TL peaks occurring at temperatures 379,428,471,510 and 550 Kelvin corresponding to activation energy 0.7 eV, 0.9eV, 1.2 eV, 1.4 eV and 1.3eV respectively.
Keywords: Activation Energy, Chemical Co-Precipitation, Nanoparticles, Scherer Formula, Thermoluminescence X-Ray Diffraction.