中国物理B ›› 2006, Vol. 15 ›› Issue (8): 1815-1818.doi: 10.1088/1009-1963/15/8/031

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Optical properties of carbon nanotubes and BaTiO3 composite thin films

吕国伟, 程波林, 沈　鸿, 陈玉金, 周岳亮, 陈正豪, 杨国桢   

  1. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China
  • 收稿日期:2005-07-11 修回日期:2006-05-09 出版日期:2006-08-20 发布日期:2006-08-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos 90406024 and 10574157).

Optical properties of carbon nanotubes and BaTiO3 composite thin films

Lü Guo-Wei(吕国伟), Cheng Bo-Li(程波林), Shen Hong(沈鸿), Chen Yu-Jin(陈玉金), Zhou Yue-Liang(周岳亮)†, Chen Zheng-Hao(陈正豪), and Yang Guo-Zhen(杨国桢)   

  1. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China
  • Received:2005-07-11 Revised:2006-05-09 Online:2006-08-20 Published:2006-08-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos 90406024 and 10574157).

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摘要： Multiwalled carbon nanotubes and BaTiO3 composite films have been prepared by pulsed-laser deposition technique at room temperature and high temperature of 600℃, separately. The structures of the composite films are investigated by using scanning electron microscopy and x-ray diffraction. The optical behaviours of the samples produced at different temperatures are compared with Raman spectroscopy, and UV-visible absorption. And the observation by Z-scan technique reveals that the composite films have a larger optical nonlinearity, and the samples prepared at high temperatures have better transmittance and opposite sign imaginary part of optical third-order nonlinearity.

关键词: carbon nanotubes, BaTiO3, composite, optical properties

Abstract: Multiwalled carbon nanotubes and BaTiO3 composite films have been prepared by pulsed-laser deposition technique at room temperature and high temperature of 600℃, separately. The structures of the composite films are investigated by using scanning electron microscopy and x-ray diffraction. The optical behaviours of the samples produced at different temperatures are compared with Raman spectroscopy, and UV-visible absorption. And the observation by Z-scan technique reveals that the composite films have a larger optical nonlinearity, and the samples prepared at high temperatures have better transmittance and opposite sign imaginary part of optical third-order nonlinearity.

Key words: carbon nanotubes, BaTiO3, composite, optical properties

中图分类号:  (Nanotubes)

  • 78.67.Ch
81.15.Fg (Pulsed laser ablation deposition) 68.55.-a (Thin film structure and morphology) 68.37.Hk (Scanning electron microscopy (SEM) (including EBIC)) 61.05.cp (X-ray diffraction) 78.66.Sq (Composite materials)