Sol-Gel Synthesis and Characterization of Pure and Silver Doped Zinc Oxide Nanoparticles
Aravapalli Vanaja1, Karumuri Srinivasa Rao2
1Aravapalli Vanaja, Department of Physics, Lingaya’s University, Old Faridabad, India.
2Karumuri Srinivasa Rao, Department of Physics, Lingaya’s University, Old Faridabad, India.
Manuscript received on July 07, 2015. | Revised Manuscript received on July 09, 2015. | Manuscript published on July 31, 2015. | PP: 11-14 | Volume-2 Issue-8, July 2015. | Retrieval Number: H0322072815
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Abstract: ZnO is a fast maturing semiconductor with significant research effort invested in it over the past decade. The emerging novel optical and electronic properties of ZnO semiconductor nanoparticles have been a focusing issue among researchers due to the great prospective in optoelectronic applications including transparent thin-film transistors, photo detectors, light-emitting diodes and laser diodes that operate in the blue and ultraviolet region of the spectrum. To enhance the properties of ZnO, researchers concentrate on doping ZnO with transition metal ions (Al, Cu, Ni).In this paper Influence of Ag doping on structure, morphology and optical properties were investigated. Pure and silver doped ZnO nanoparticles were synthesized by simple, inexpensive Sol–gel process. The powders were investigated using X Ray Diffraction (XRD), Scanning electron Microscopy (SEM) and Fourier transform infrared (FTIR) Spectroscopic characterizations. XRD reveals hexagonal wurtzite structure of nanoparicles with high purity. The incorporation of Ag+ in the place of Zn2+ provoked an increase in the size of nanoparticles as compared to undoped or pure ZnO nanoparticles. SEM images showed that Ag doping has great influence on morphology of ZnO. The presence of functional groups analyzed using FTIR spectra. Ag doped ZnO nanoparticles in the present study have played a vital role in surface morphology, structural and optical properties of ZnO nanoparticles.
Keywords: FTIR, Nanoparticles, SEM, XRD, Zinc oxide.