Synthesis of ZnO nanoparticles by hydrothermal method | Zendy

P. M. Aneesh | Zendy; K.A. Vanaja | Zendy; M. K. Jayaraj | Zendy

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Synthesis of ZnO nanoparticles by hydrothermal method

Author(s) -

P. M. Aneesh,

K.A. Vanaja,

M. K. Jayaraj

Publication year - 2007

Publication title -

proceedings of spie, the international society for optical engineering/proceedings of spie

Language(s) - English

Resource type - Conference proceedings

SCImago Journal Rank - 0.192

H-Index - 176

eISSN - 1996-756X

pISSN - 0277-786X

DOI - 10.1117/12.730364

Subject(s) - photoluminescence , selected area diffraction , nanoparticle , materials science , transmission electron microscopy , hydrothermal circulation , zinc , spectroscopy , band gap , diffuse reflectance infrared fourier transform , analytical chemistry (journal) , hydrothermal synthesis , vacancy defect , particle size , inductively coupled plasma , wide bandgap semiconductor , chemical engineering , nanotechnology , optoelectronics , chemistry , crystallography , metallurgy , plasma , photocatalysis , biochemistry , physics , chromatography , quantum mechanics , engineering , catalysis

Stable, OH free zinc oxide (ZnO) nanoparticles were synthesized by hydrothermal method by varying the growth temperature and concentration of the precursors. The formation of ZnO nanoparticles were confirmed by x-ray diffraction (XRD), transmission electron microscopy (TEM) and selected area electron diffraction (SAED) studies. The average particle size have been found to be about 7-24 nm and the compositional analysis is done with inductively coupled plasma atomic emission spectroscopy (ICP-AES). Diffuse reflectance spectroscopy (DRS) results shows that the band gap of ZnO nanoparticles is blue shifted with decrease in particle size. Photoluminescence properties of ZnO nanoparticles at room temperature were studied and the green photoluminescent emission from ZnO nanoparticles can originate from the oxygen vacancy or ZnO interstitial related defects.

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