کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1264373 972129 2008 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Deep blue light-emitting diode based on high molecular weight poly(9,9-dioctylfluorene) with high efficiency and color stability
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Deep blue light-emitting diode based on high molecular weight poly(9,9-dioctylfluorene) with high efficiency and color stability
چکیده انگلیسی

A highly efficient deep blue polymer light-emitting diode based on poly(9,9-dioctylfluorene) is demonstrated. The performance is found to increase significantly with the molecular weight. Two different molecular weights are compared, one is 71,000 and the other is 365,000. The electroluminescent efficiency and color stability are improved by slightly doping hole traps into the emission layer and bilayer structure. The maximum efficiency is 3.8 cd/A with the corresponding external quantum efficiency of 3.7% at deep blue with Commission Internationale de L’Eclairage (CIE) coordinate at (0.15, 0.09). Stable blue emission is maintained up to 6600 cd/m2 without growth of green shoulder in emission spectrum.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Organic Electronics - Volume 9, Issue 3, June 2008, Pages 279–284
نویسندگان
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