کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1268540 972409 2008 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Improved performance of polymer light-emitting devices based on blend of MEH–PPV and vinyl copolymer with 1,3,4-oxadiazole chromophores
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Improved performance of polymer light-emitting devices based on blend of MEH–PPV and vinyl copolymer with 1,3,4-oxadiazole chromophores
چکیده انگلیسی

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.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Organic Electronics - Volume 9, Issue 1, February 2008, Pages 45–50
نویسندگان
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