Electronic interaction in composites of a conjugated polymer and carbon nanotubes: first-principles calculation and photophysical approaches

Beilstein Journal of Nanotechnology

Chris Ewels¹  Florian Massuyeau¹  Jean-Luc Duvail¹  Eric Faulques¹  Jany Wéry¹  Abu Yaya¹  Serge Lefrant¹ 

[1] Institut des Matériaux Jean Rouxel, Université de Nantes, CNRS, UMR6502, 2 rue de la Houssinière, 44322 Nantes, France;

关键词: composite;    conjugated polymer;    DFT calculations;    energy transfer;    photoconductivity;    single wall carbon nanotubes;    time-resolved photoluminescence;   

DOI  :  10.3762/bjnano.6.115

来源: DOAJ

【 摘 要 】

The mechanisms that control the photophysics of composite films made of a semiconducting conjugated polymer (poly(paraphenylene vinylene), PPV) mixed with single-walled carbon nanotubes (SWNT) up to a concentration of 64 wt % are determined by using photoexcitation techniques and density functional theory. Charge separation is confirmed experimentally by rapid quenching of PPV photoluminescence and changes in photocurrent starting at relatively low concentrations of SWNT. Calculations predict strong electronic interaction between the polymer and the SWNT network when nanotubes are semiconducting.

【 授权许可】

Unknown