Improved performance of polymer light-emitting devices based on blend of MEH-PPV and vinyl copolymer with 1,3,4-oxadiazole chromophores

Kun Ming Yeh, Yun Chen

研究成果: Article同行評審

10 引文 斯高帕斯(Scopus)

摘要

We have developed a simple method to overcome the intrinsic defect of well-known poly[2-methoxy-5-(2′-ethylhexoxy)-p-phenylenevinylene] (MEH-PPV), i.e. rampant inter-chain interaction and imbalanced hole and electron fluxes, by blending with copolymer of polystyrene containing pendant aromatic 1,3,4-oxadiazole (PSOXD12). The addition of PSOXD12 reduces the inter-chain interaction and balances charge carrier transport simultaneously. Photoluminescence (PL), PL excitation and electroluminescence (EL) spectra of the blends reveal that the inter-chain interactions, such as aggregation and excimer/exciplex, are reduced markedly due to the presence of PSOXD12. Enhanced EL device performance has been achieved (16,261 cd/m2, 4.79 cd/A) as a result of both reduced inter-chain interaction and balanced charge transport.

原文English
頁(從 - 到)45-50
頁數6
期刊Organic Electronics
9
發行號1
DOIs
出版狀態Published - 2008 二月

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 生物材料
  • 化學 (全部)
  • 凝聚態物理學
  • 材料化學
  • 電氣與電子工程

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