Structure and Raman scattering of Mg-doped ZnO nanoparticles prepared by sol-gel method  

作　　者：Zhonglyu Jiang Ke-Rong Zhu Zhong-Qing Lin Shao-Wei Jin Guang Li 

机构地区：[1]School of Physics and Materials Science, Anhui University,Hefei 230039, China [2]Modern Experiment Technical Center, Anhui University, Hefei230039, China

出　　处：《Rare Metals》2018年第10期881-885,共5页稀有金属（英文版）

基　　金：financially supported by the National Natural Science Foundation of China (Nos. 11174001 and 11174002);the Science Foundation of Anhui Education (Nos. KJ2013A030);the Scientific Research Startup Outlay for Doctors in Anhui University

摘　　要：Mg-doped ZnO （MgxZn1-xO, x=0-0.10） nanoparticles were prepared by sol-gel method. Structural characterization by X-ray diffraction （XRD） indicates that the lattice parameter a increases and c decreases linearly with the increase in Mg content （x） due to the substitution of Mg2＋ for Zn2＋ in ZnO lattice. The blueshift of Raman modes is observed, impling the increase in force constant of atom vibration in the MgxZn1-xO （MgZnO） nanoparticles. Resonant Raman spectra show longitudinal optical phonon overtones up to fifth order, revealing that the short part of the electron-phonon interaction is enhanced and long-range part is weakened by Mg doping.Mg-doped ZnO （MgxZn1-xO, x=0-0.10） nanoparticles were prepared by sol-gel method. Structural characterization by X-ray diffraction （XRD） indicates that the lattice parameter a increases and c decreases linearly with the increase in Mg content （x） due to the substitution of Mg2＋ for Zn2＋ in ZnO lattice. The blueshift of Raman modes is observed, impling the increase in force constant of atom vibration in the MgxZn1-xO （MgZnO） nanoparticles. Resonant Raman spectra show longitudinal optical phonon overtones up to fifth order, revealing that the short part of the electron-phonon interaction is enhanced and long-range part is weakened by Mg doping.

关 键 词：ZnO nanoparticles Mg doping X-ray diffraction Raman scattering 

分 类 号：O4-09[理学—物理] TN304.21[电子电信—物理电子学]