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Degree of phase separation effects on the charge transfer properties of P3HT:Graphene nanocomposites

journal contribution
posted on 10.08.2015, 11:29 by R. Bkakri, Olga Kusmartseva, Feodor Kusmartsev, Mo Song, A. Bouazizi
Graphene layers were introduced into the matrix of regioregularpoly(3-hexylthiophene-2,5-diyl)(RR-P3HT) via solution processing in the perspective of the development of organic nanocomposites with high P3HT/Graphene interfaces areas for efficient charge transfer process. P3HT and graphene act as electrons donor and electrons acceptor materials,respectively. Spatial Fourier Transforms(FFT) and power spectral density(PSD) analysis of the AFM images show that the phase separation decreases with increasing the graphene weight ratio in the P3HTmatrix. The Raman spectra of the P3HT: Graphene nanocomposites shows that the G-band of graphene shifts to low frequencies with progressive addition of graphene which proves that there is an interaction between the nanowires of P3HT and the graphene layers. We suggest that the shift of the G-band is due to electrons transfer from P3HT to graphene. The quenching of the photoluminescence(PL) intensity of P3HT with addition of graphene proves also that an electrons transfer process occurred at the P3HT/Grapheneinterfaces.

History

School

  • Science

Department

  • Physics

Published in

JOURNAL OF LUMINESCENCE

Volume

161

Pages

264 - 270 (7)

Citation

BKAKRI, R... et al., 2015. Degree of phase separation effects on the charge transfer properties of P3HT: Graphene nanocomposites. Journal of Luminescence, 161, pp.264-270.

Publisher

© Elsevier

Version

VoR (Version of Record)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2015

Notes

This paper is closed access.

ISSN

0022-2313

Language

en

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