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N. PRIYADHARSINI1, M. THAMILSELVAN1,* , S. VAIRAM2
Nickel doped PbSe (Pb1-xNixSe) nanoparticles was successfully synthesized through the wet chemical method at room temperature. Structural, composition and morphology of the as-obtained samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX) and transmission electron microscopy (TEM). The XRD pattern recorded for the Pb1-xNixSe nanoparticles confirms the cubic structure and particle size increases as nickel content increase. The SEM images show the dense microstructure for pure PbSe and well defined particles for nickel substituted PbSe. EDX confirmed the purity of the as-obtained powders. The SAED patterns predicted crystalline nature and particle size was found in the range of 20-35 nm through TEM analysis. The studies on the optical property of Pb1-xNixSe were carried out by UV-vis absorption spectrum; it shows the direct transition and the band gap value decrease with increasing Ni content in lead chalcogenide. The strong influence of the nickel (dopant) substitution on dielectric analysis of the samples was witnessed from the electrical measurements..
Chalcogenides, Nickel, TEM, XRD, Optical properties.
N. PRIYADHARSINI, M. THAMILSELVAN, S. VAIRAM, Effect of nickel substitution on structural, optical and dielectric properties of lead chalcogenide (PbSe) nano particle, Optoelectronics and Advanced Materials - Rapid Communications, 10, 11-12, November–December 2016, pp.916-920 (2016).
Submitted at: Dec. 7, 2015
Accepted at: Nov. 25, 2016
Optoelectronics and Advanced Materials - Rapid Communications
(2022): 0.5 - 2022 Journal Citation Reports (Clarivate Analytics, 2023)
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