Journal Article

Improved photoconductive properties of composite nanofibers based on aligned conjugated polymer and single-walled carbon nanotubes

Florian Massuyeau Yuanchun Zhao Abdel Aziz El Mel Abu Yaya Frederic Geschier Eric Gautron Serge Lefrant Jean Yves Mevellec Chris Ewels Chain-Shu Hsu Eric Faulques Jany Wery Jean Luc Duvail

2013

Overview

We successfully address the challenge of aligning single-walled carbon nanotubes （SWNTs） and conjugated polymer chains in composite nanofibers for enhancing their opto-electrical properties. A pore-filling template strategy has been developed to prepare such nanocomposites from SWNTs and poly（para-phenylene vinylene） （PPV） chains, with both species well-oriented aligned along the pore axis. Addition of the SWNTs leads to a remarkable increase in photocurrent of four orders of magnitude as compared to equivalent pristine PPV nanofibers. Further analysis indicates that the strong photocurrent enhancement is not simply an effect of alignment, but additionally benefits from alignment-enhanced interaction of polymer chains with SWNTs, as supported by density functional theory （DFT） calculations.

• Publisher: Tsinghua Press,Tsinghua University Press,Springer
• Subject: Alignment / Atomic/Molecular Structure and Spectra / Biomedicine / Biotechnology / Carbon / Chains (polymeric) / Chemistry and Materials Science / Composite materials / Condensed Matter / Condensed Matter Physics / Electrical properties / Lasers / Materials Science / Nanocomposites / Nanofibers / Nanostructure / Nanotechnology / Organic light emitting diodes / Photocurrent / Photovoltaic cells / Physics / Polymers / Polyphenylene vinylene / Research Article / Scanning electron microscopy / Single wall carbon nanotubes / 光导性能 / 共轭聚合物 / 单壁碳纳米管 / 复合纳米纤维 / 密度泛函理论 / 排列 / 纳米复合材料 / 聚合物链