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Nano Research

Article Title

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

Authors

Florian Massuyeau, Institut des Matériaux Jean Rouxel, UMR6502 CNRS, Université de Nantes, 2 rue de la Houssinière, F-44322 Nantes, France
Yuanchun Zhao, Institut des Matériaux Jean Rouxel, UMR6502 CNRS, Université de Nantes, 2 rue de la Houssinière, F-44322 Nantes, France
Abdel Aziz El Mel, Institut des Matériaux Jean Rouxel, UMR6502 CNRS, Université de Nantes, 2 rue de la Houssinière, F-44322 Nantes, France
Abu Yaya, Institut des Matériaux Jean Rouxel, UMR6502 CNRS, Université de Nantes, 2 rue de la Houssinière, F-44322 Nantes, France
Frédéric Geschier, Institut des Matériaux Jean Rouxel, UMR6502 CNRS, Université de Nantes, 2 rue de la Houssinière, F-44322 Nantes, France
Eric Gautron, Institut des Matériaux Jean Rouxel, UMR6502 CNRS, Université de Nantes, 2 rue de la Houssinière, F-44322 Nantes, France
Serge Lefrant, Institut des Matériaux Jean Rouxel, UMR6502 CNRS, Université de Nantes, 2 rue de la Houssinière, F-44322 Nantes, France
Jean Yves Mevellec, Institut des Matériaux Jean Rouxel, UMR6502 CNRS, Université de Nantes, 2 rue de la Houssinière, F-44322 Nantes, France
Chris Ewels, Institut des Matériaux Jean Rouxel, UMR6502 CNRS, Université de Nantes, 2 rue de la Houssinière, F-44322 Nantes, France
Chain-Shu Hsu, Department of Applied Chemistry, Chiao Tung University, 1001 Ta Hsueh Road, Hsin-Chu 30010, Taiwan, China
Eric Faulques, Institut des Matériaux Jean Rouxel, UMR6502 CNRS, Université de Nantes, 2 rue de la Houssinière, F-44322 Nantes, France
Jany Wéry, Institut des Matériaux Jean Rouxel, UMR6502 CNRS, Université de Nantes, 2 rue de la Houssinière, F-44322 Nantes, France
Jean Luc Duvail, Institut des Matériaux Jean Rouxel, UMR6502 CNRS, Université de Nantes, 2 rue de la Houssinière, F-44322 Nantes, France

Keywords

Tubular nanocomposites, single-walled carbon nanotube (SWNT), photoconductivity, transport properties, conjugated polymer, density functional theory (DFT) calculation

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.

Graphical Abstract

Publisher

Tsinghua University Press

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