| Original Articles |
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Optical Properties of Co--BaTiO3/Mg(100) Nano-Composite Films Grown by Pulsed Laser Deposition Method |
| WU Wei-Dong1,2;WANG Feng1,3;GE Fang-Fang1,4;BAI Li1,2;LEI Hai-Le1;TANG Yong-Jian1,2;JU Xin5;CHEN Zheng-Hao1,6;SUN Wei-Guo1,3 |
| 1Research Center of Laser Fusion, China Academy of Engineering Physics, PO Box 919-986, Mianyang 6219002Department of Physics, Southwest University of Science and Technology, Mianyang 6210103Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 6100654Department of Physics, Tongji University, Shanghai 2169005Department of Physics, Nanjing University, Nanjing 2100936Laboratory of Optical Physics, Institute of Physics, Center for Condensed Matter Physics, Chinese Academy of Sciences, PO Box 603, Beijing 100080 |
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| Cite this article: |
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WU Wei-Dong, WANG Feng, GE Fang-Fang et al 2008 Chin. Phys. Lett. 25 1465-1468 |
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Abstract 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°C. Optical properties of the Co--BaTiO3 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.
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| Keywords:
78.67.-n
81.15.Fg
42.70.Mp
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Received: 24 October 2007
Published: 31 March 2008
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| PACS: |
78.67.-n
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(Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures)
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81.15.Fg
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(Pulsed laser ablation deposition)
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42.70.Mp
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(Nonlinear optical crystals)
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