Structural and Optical Characterization of ZnS Nanoparticles Synthesized by Low Temperature Solid-State Method
P. Kannappan1, R. Dhanasekaran2

1P. Kannappan, Crystal Growth Centre, Anna University, Chennai (Tamil Nadu), India.
2R. Dhanasekaran, Department of Physics, Bannari Amman Institute of Technology, Sathyamangalam, Erode (Tamil Nadu), India.
Manuscript received on 10 December 2018 | Revised Manuscript received on 29 December 2018 | Manuscript Published on 09 January 2019 | PP: 26-28 | Volume-7 Issue-4S November 2018 | Retrieval Number: E1861017519/19©BEIESP
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Abstract: The ZnS nanoparticles were synthesized by solid state reaction method. The synthesized sample was characterized by powder XRD, SEM, EDAX, UV-visible, fluorescence and FT Raman analysis. The powder XRD analysis shows the broad (111), (220) and (311) peaks which confirms the formation of cubic structure. The SEM image shows the agglomerated spherical shape of morphology. The EDAX analysis shows the composition of Zn and S are 46.47% and 53.53% respectively. The UV-Visible spectrum analysis shows the absorption wavelength as 325 nm and calculated band gap 3.81 eV. The fluorescence study reveals the near band edge emission at 363 nm and defect level peaks were observed in the higher wavelength of the photoluminescence spectrum. FT Raman analysis shows the vibration frequency at 234 cm-1 is due to the longitudinal optical (LO) mode of Zn-S lattice.
Keywords: ZnS, XRD, SEM, EDAX, Optical Properties.
Scope of the Article: Structural Engineering