Abstract
In the present study, zinc selenide (ZnSe) nanoparticles (NPs) were synthesized by hydrothermal method and effect of annealing at different temperatures (100, 300, 500 and 700 °C) was monitored using various characterization techniques. It was observed and confirmed that ZnSe NPs oxidized on annealing at high temperature 700 °C and more than 70 % of ZnSe converted into ZnO NPs. The prepared NPs were characterized by X-ray diffraction and field emission scanning electron microscope, while spectroscopic characterizations were done by UV–Visible absorption, Photoluminescence (PL) emission, Raman scattering and Photoluminescence excitation (PLE) techniques. PL and PLE spectra confirmed strong interaction between the synthesized NPs, through the process of energy transfer, which resulted in bright blue–green colour emission of ZnSe and defect emissions of ZnO NPs.
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Authors are thankful to Dr. Inderpreet Kaur, Scientist Central Scientific Instrument Organisation, Chandigarh, Punjab for helping in recording FE-SEM and Raman spectra of the samples.
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Yadav, K., Dwivedi, Y. & Jaggi, N. Effect of annealing temperature on the structural and optical properties of ZnSe nanoparticles. J Mater Sci: Mater Electron 26, 2198–2204 (2015). https://doi.org/10.1007/s10854-015-2668-1
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DOI: https://doi.org/10.1007/s10854-015-2668-1