Charge Transfer Properties in MEH-PPV/PS:MWCNTs Nanocomposites

Nadia Chehata, Olfa Dhibi, Adnen Ltaief, Ali Farzi, Abdelaziz Bouazizi

Department of Material and Polymer Engineering, Faculty of Engineering, Sabzevar Tarbiat Moallem University, Sabzevar, Iran..
Equipe Composants Electroniques Organiques et Photovolta?ques Moléculaires, Département de Physique, Faculté des Sciences de Monastir, Monastir, Tunisie.

DOI: 10.4236/jsemat.2012.23028                

Abstract

The effect of composition and annealing temperature on charge transfer properties, in a donor/acceptor nanocomposites based on poly (2-methoxy-5-(2-ethyhexyl-oxy)-p-phenylenevinylene) (MEH-PPV) and MWCNTs functionalized with Polystyrene (PS:MWCNTs), have been investigated. The quenching of photoluminescence (PL) intensity of pure MEH-PPV, by adding different amounts of functionalized carbon nanotubes, exhibits that a photoinduced charge transfer has been occurred. Charge transfer efficiency was obtained for an acceptable concentration of PS:MWCNTs about 0.5 wt% and at annealed temperature of about 80℃. Quenching efficiency studies imply that MEH-PPV/PS:MWCNTs nanocomposites reveal a high degree of PL quenching, reaching a value of η = 76.9%.

Keywords

Poly (2-methoxy-5-(2-ethyhexyl-oxy)-p-phenylenevinylene) (MEH-PPV); Functionalized CarbonNanotubes; Charge Transfer; Nanocomposites

Conflicts of Interest

The authors declare no conflicts of interest.

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