TITLE:
Charge Transfer Properties in MEH-PPV/PS:MWCNTs Nanocomposites
AUTHORS:
Nadia Chehata, Olfa Dhibi, Adnen Ltaief, Ali Farzi, Abdelaziz Bouazizi
KEYWORDS:
Poly (2-methoxy-5-(2-ethyhexyl-oxy)-p-phenylenevinylene) (MEH-PPV); Functionalized CarbonNanotubes; Charge Transfer; Nanocomposites
JOURNAL NAME:
Journal of Surface Engineered Materials and Advanced Technology,
Vol.2 No.3,
July
25,
2012
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%.