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题名: Enhanced photoresponse from the ordered microstructure of naphthalocyanine-carbon nanotube composite film
作者: Feng W;  Li Y;  Feng YY;  Wu J
发表日期: 2006
摘要: Naphthalocyanine-sensitized multi-walled carbon nanotube (NaPc-MWNT) composites have been synthesized through the pi-stacking between naphthalocyanine (NaPc) and carbon nanotubes. The resultant nanocomposites were characterized with a scanning electron microscope (SEM), a transmission electron microscope (TEM), and by UV - vis absorption and photocurrent spectra. The long-range ordering was observed in the NaPc - MWNT composites by using a TEM. The enhancement in the absorption intensity and the broadening of the absorption wavelength observed in the composite films, which were due to the attachment of NaPc on the MWNT surface, is discussed based on the measured UV - vis absorption spectra. Furthermore, the photoconductivity of the poly( 3-hexylthiophene)(PAT6) - NaPc - MWNT composite film was found to increase remarkably in the visible region and broaden towards the red regions. These new phenomena were ascribed to the larger donor/acceptor (D/A) interface and the formation of a biconsecutive D/A network structure, as discussed in consideration of the photoinduced charge transfer between PAT6 and NaPc - MWNT.
KOS主题词: Thin films;  dye;  Immobilization;  polyaniline;  Cytology;  Photoelectric multipliers
刊名: NANOTECHNOLOGY
专题: 中国科学院半导体研究所(2009年前)_期刊论文

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推荐引用方式:
Feng W; Li Y; Feng YY; Wu J .Enhanced photoresponse from the ordered microstructure of naphthalocyanine-carbon nanotube composite film ,NANOTECHNOLOGY,2006,17(13):3274-3279
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