Title: Improved photoconductive properties of composite nanofibers based on aligned conjugated polymer and single-walled carbon nanotubes
Authors: Massuyeau, Florian
Zhao, Yuanchun
El Mel, Abdel Aziz
Yaya, Abu
Geschier, Frederic
Gautron, Eric
Lefrant, Serge
Mevellec, Jean Yves
Ewels, Chris
Hsu, Chain-Shu
Faulques, Eric
Wery, Jany
Duvail, Jean Luc
Department of Applied Chemistry
Keywords: Tubular nanocomposites;single-walled carbon nanotube (SWNT);photoconductivity;transport properties;conjugated polymer;density functional theory (DFT) calculation
Issue Date: 1-Feb-2013
Abstract: 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.
URI: http://dx.doi.org/10.1007/s12274-013-0290-1
ISSN: 1998-0124
DOI: 10.1007/s12274-013-0290-1
Volume: 6
Issue: 2
Begin Page: 149
End Page: 158
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