Synthesis and Third-Order Optical Nonlinearities of Conjugated Polymer-Bonded Carbon Nanotubes

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概要

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• Multiwalled carbon nanotubes (MWNTs) bonded with an amino-moiety-containing nonlinear optical (NLO) polymer, poly{[3-octylthiophene-2,5-diyl]-[p-aminobenzylidenequinomethane]} (POTABQ), were synthesized via amidiation reaction and were characterized using transmission electron microscope (TEM), Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD) spectroscopy, ultraviolet-visible absorption spectroscopy (UV-vis), and fluorescence (FL) spectroscopy. The micrograph of POTABQ-MWNTs showed a "bead-shaped structure", which indicated that the polymer was attached to the tubes by chemical linkage rather than as a homogenous coating. POTABQ-MWNTs showed fluorescence quenching, which is involved in the intramolecular photoinduced charge transfer process. A broad absorption band appeared at over 800 nm, indicating the ground-state interaction between POTABQ and MWNTs. Third-order NLO properties were studied by nanosecond degenerate four-wave mixing (DFWM) techniques. The resulting POTABQ-MWNTs exhibited large third-order NLO responses mainly due to the formation of an intramolecular photoinduced charge transfer system of polymers and carbon nanotubes.

• Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
• 2005-05-15

著者

• Feng Wei

  School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China

• Wu Hougcai

  School of Information and Electronics Engineering, Xi'an Jiaotong University, Xi'an 710049, China

• Yi Wenhui

  School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China

• Xu Youlong

  School of Information and Electronics Engineering, Xi'an Jiaotong University, Xi'an 710049, China

• Xu Youlong

  School of Information and Electronics Engineering, Xi'an Jiaotong University, Xi'an 710049, China

• Xu Youlong

  School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an 710049, P. R. China

• Feng Wei

  School of Materials Science and Engineering, Tianjin University, 300072 Tianjin, P. R. China

関連論文

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• Nonlinear Optical Properties of Poly(3,4-ethylenedioxythiophene) Synthesized by Electropolymerization
• Design of Microstrip Ferrite-Coupled Line Devices Using Perturbation Theory
• Synthesis and Third-Order Optical Nonlinearities of Conjugated Polymer-Bonded Carbon Nanotubes

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