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- W2068486531 abstract "Copper doped zinc sulfide nanoparticles were prepared by chemical precipitation method. The size of the particles was varied by changing the concentration of capping agent. The XRD studies indicate that most of the samples are cubic in nature. The broadening of peaks tends to increase with increasing capping agent concentration showing decrease in particle size. The crystalline size computed using Scherrer formula is found to be in range of 3–10 nm. Absorption spectra show absorption edge in UV region. The edge was found to shift towards shorter wavelength as the capping agent concentration is increased. This indicates increased effective band gap and hence reduced particle size. The nanoparticle size has been estimated in the range 5–10 nm using effective mass approximation model. For electroluminescence (EL) study of ZnS:Cu nanocrystals, the EL cells were prepared by placing ZnS:Cu nanoparticles between SnO 2 coated conducting glass plate and aluminum foil. Alternating voltage of various frequencies was applied and EL brightness ( B ) at different voltages ( V ) was measured and reported in this paper." @default.
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- W2068486531 date "2013-10-01" @default.
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- W2068486531 title "Preparation, characterization and electroluminescence studies of copper doped zinc sulfide nanocrystals" @default.
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- W2068486531 doi "https://doi.org/10.1016/j.ijleo.2012.12.013" @default.
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