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高等学校化学研究 ›› 2005, Vol. 21 ›› Issue (2): 166-168.

• Articles • 上一篇    下一篇

Synthesis of Poly[(3-octanoylpyrrole-2,5-diyl)-p-(N, N-dimethylamino) benzylidene] and Its Properties by Nitrogen Ion Implantation

ZHANG Zhi-gang, WU Hong-cai, LIU Xiao-zeng, YI Wen-hui   

  1. Institute of Photoelectric Technology and Solar Energy, School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an 710049, P. R. China
  • 收稿日期:2004-04-07 出版日期:2005-03-24 发布日期:2011-07-27
  • 基金资助:

    Supported by the National Natural Science Foundation of China(No.60277002).

Synthesis of Poly[(3-octanoylpyrrole-2,5-diyl)-p-(N, N-dimethylamino) benzylidene] and Its Properties by Nitrogen Ion Implantation

ZHANG Zhi-gang, WU Hong-cai, LIU Xiao-zeng, YI Wen-hui   

  1. Institute of Photoelectric Technology and Solar Energy, School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an 710049, P. R. China
  • Received:2004-04-07 Online:2005-03-24 Published:2011-07-27
  • Supported by:

    Supported by the National Natural Science Foundation of China(No.60277002).

摘要: A novel soluble π-conjugated polymer, poly[(3-octanoylpyrrole-2,5-diyl)-p-(N,N-dimethylamino)benz ylidene] (POPDMABE), was synthesized firstly by the condensation of 3-octanoylpyrrole with paradimethylaminobenzaldehyde.The chemical structure of the polymer was characterized by FTIR and 1H NMR spectrometries.The polymer is a potential nonlinear optical(NLO) material.According to the function of optical forbidden band gap(Eg) and photon energy(hv), the optical forbidden band gaps of the polymer before and after ion implantation were calculated.The resonant third-order nonlinear optical properties of POPDMABE before and after ion implantation were also studied by using the degenerate four-wave mixing (DFWM) technique at 532 nm.When the energy is 25 keV and the dose is 2.2×1017 ions/cm2, the polymer's optical forbidden band gap is about 1.63 eV which is smaller than that of the non-implanted sample (1.98eV) and the resonant third-order NLO susceptibility of POPDMABE is about 4.3×10-7 esu, 1 order of magnitude higher than that of the non-implanted sample(4.1×10-8 esu).The results show that nitrogen ion implantation is an effective method to improve the resonant third-order NLO property of the polymer.

关键词: Poly[(3-octanoylpyrrole-2,5-diyl)-p-(N,N-dimethylamino)benzylidene], Ion implantation, Optical forbidden band gap, Resonant third-order nonlinear optical property, Degenerate four-wave mixing technique

Abstract: A novel soluble π-conjugated polymer, poly[(3-octanoylpyrrole-2,5-diyl)-p-(N,N-dimethylamino)benz ylidene] (POPDMABE), was synthesized firstly by the condensation of 3-octanoylpyrrole with paradimethylaminobenzaldehyde.The chemical structure of the polymer was characterized by FTIR and 1H NMR spectrometries.The polymer is a potential nonlinear optical(NLO) material.According to the function of optical forbidden band gap(Eg) and photon energy(hv), the optical forbidden band gaps of the polymer before and after ion implantation were calculated.The resonant third-order nonlinear optical properties of POPDMABE before and after ion implantation were also studied by using the degenerate four-wave mixing (DFWM) technique at 532 nm.When the energy is 25 keV and the dose is 2.2×1017 ions/cm2, the polymer's optical forbidden band gap is about 1.63 eV which is smaller than that of the non-implanted sample (1.98eV) and the resonant third-order NLO susceptibility of POPDMABE is about 4.3×10-7 esu, 1 order of magnitude higher than that of the non-implanted sample(4.1×10-8 esu).The results show that nitrogen ion implantation is an effective method to improve the resonant third-order NLO property of the polymer.

Key words: Poly[(3-octanoylpyrrole-2,5-diyl)-p-(N,N-dimethylamino)benzylidene], Ion implantation, Optical forbidden band gap, Resonant third-order nonlinear optical property, Degenerate four-wave mixing technique