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

• 作者: Abdelaziz Bouazizi Adnen Ltaief Ali Farzi Nadia Chehata Olfa Dhibi
• 来源期刊: 表面工程材料与先进技术期刊(英文)
• 学科: 化学
• 关键词: Poly (2-methoxy-5-(2-ethyhexyl-oxy)-p-phenylenevinylene) (MEH-PPV) Functionalized CARBONNANOTUBES Charge Transfer NANOCOMPOSITES
• 年，卷（期）: 2012,（3）
• 页码范围: 174-181
• 页数: 8页
• 分类号: O6

摘要

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%.