期刊
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
卷 16, 期 3, 页码 771-777出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.mssp.2012.12.025
关键词
Mg-doped ZnO nanoparticles; X-ray diffraction; Size-strain plot; Optical properties
类别
资金
- Islamic Azad University (I.A.U), Masjed-Soleiman Branch
- Islamic Azad University (I.A.U), Ahwaz Branch
Undoped and Mg-doped ZnO nanoparticles (NPs) (Zn1-xMgxO, x=0.01, 0,03, and 0.05) were grown by the sot-gel method. X-ray results showed that the products were crystalline with a hexagonal wurtzite phase. Microscopy studies revealed that the undoped ZnO NPs and Zn1-xMgxO NPs had nearly spherical and hexagonal shapes. The size-strain plot (SSP) method was used to study the individual contributions of crystallite sizes and lattice strain on the peak broadening of the undoped and Mg-doped ZnO NPs. Some physical parameters such as strain, stress, and energy-density values were calculated for all reflection peaks of the XRD corresponding to the wurtzite hexagonal phase of ZnO in the 20-100 degrees range from the SSP results. The effect of doping on the band-gap was also investigated by a photoluminescence (PL) spectrometer. The PL results showed that Mg2+ is a good dopant to control band gap of the ZnO properties. (C) 2013 Elsevier Ltd. All rights reserved.
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