Structural and optical properties of ZnO nanopowder prepared by microwave-assisted synthesis

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题名:	Structural and optical properties of ZnO nanopowder prepared by microwave-assisted synthesis
作者:	Lee, Y.C. Yang, C.S. Huang, H.J. Hu, S.Y. Lee, J.W. Cheng, C.F. Huang, C.C. Tsai, M.K. Kuang, H.C. 胡勝耀 (東方技術學院電機工程系)
贡献者:	東方技術學院電機工程系
关键词:	Zinc oxide Microwave-assisted synthesis X-ray diffraction Photoluminescence
日期:	2010-04
上传时间:	2014-05-12 19:33:51 (UTC+8)
摘要:	We report the characterization of nano-size zinc oxide (ZnO) powder synthesized via microwave-assisted heating of Zn(CH3COO)2•2H2O and NaHCO3 solution with deionized water (DI water) as the solvent. The as-synthesized ZnO powder was calcined at temperatures from 400 to 800 °C for 8 h. The X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR) spectra revealed pure wurtzite structure for the ZnOnanopowder (NP) calcined at 800 °C. Scanning electron microscopy (SEM) images showed increasing size ZnO NP with uniform size distribution with increase in calcination temperature. Significant UV emission at about 373 nm has been observed in the photoluminescence (PL) spectra of the as-synthesized and calcined ZnO NP. Our results showed enhanced PL intensity with a reduced full-width at half-maximum (FWHM) for ZnO NP synthesized at higher calcination temperature.
關聯:	Journal of Luminescence, Vol.130, pp.1756-1759
显示于类别:	[電機工程系(數位科技系、玩具科)] 期刊論文

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