Optical Properties of Co-BaTiO3/Mg（100） Nano-Composite Films Grown by Pulsed Laser Deposition Method  

作　　者：吴卫东 王锋 葛芳芳 白黎 雷海乐 唐永建 巨新 陈正豪 孙卫国 

机构地区：[1]Research Center of Laser Fusion, China Academy of Engineering Physics, PO Box 919-986, Mianyang 621900 [2]Department of Physics, Southwest University of Science and Technology, Mianyang 621010 [3]Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065 [4]Department of Physics, Tongji University, Shanghai 216900 [5]Department of Physics, Nanjing University, Nanjing 210093 [6]Laboratory of Optical Physics, Institute of Physics, Center for Condensed Matter Physics, Chinese Academy of Sciences, PO Box 603, Beijing 100080

出　　处：《Chinese Physics Letters》2008年第4期1465-1468,共4页中国物理快报（英文版）

摘　　要：Co nanoparticles embedded in a BaTiO3 matrix, namely Co-BaTiO3 nano-composite films are grown on Mg（100） single crystal substrates by the pulsed laser deposition （PLD） method at 650℃. Optical properties of the CoBaTiO3 nano-composite films are examined by absorption spectra （AS） and photoluminescence （PL） spectra. The results indicate that the concentration of Co nano-particles strongly influences the electron transition of the Co BaTiO3 nano-composite films. The PL emission band ranging from 1.9 to 2.2eV is reported. The AS and PL spectra suggest that the band gap is in the range of 3.28-3.7eV.Co nanoparticles embedded in a BaTiO3 matrix, namely Co-BaTiO3 nano-composite films are grown on Mg（100） single crystal substrates by the pulsed laser deposition （PLD） method at 650℃. Optical properties of the CoBaTiO3 nano-composite films are examined by absorption spectra （AS） and photoluminescence （PL） spectra. The results indicate that the concentration of Co nano-particles strongly influences the electron transition of the Co BaTiO3 nano-composite films. The PL emission band ranging from 1.9 to 2.2eV is reported. The AS and PL spectra suggest that the band gap is in the range of 3.28-3.7eV.

关 键 词：NONLINEARITY ENHANCEMENT ABSORPTION 

分 类 号：TN78[电子电信—电路与系统]