کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9758778 | 1496844 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Blue polymer light-emitting diodes with organic/inorganic hybrid composite as hole transporting layer
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Polymer double-layer light-emitting diodes were fabricated with inorganic/organic hybrid composite as hole transporting layer. Two conjugated polymers, poly(9,9-dibutyl)fluorene (PDF) and a dendritic polyfluorene derivative, poly((9,9-dibutyl-2,7-diiodo-9H-fluorene)trisphenylamine) (PDFA) were introduced as light-emitting layer. The former organic double-layer devices showed luminance as high as 833Â lm/m2, and the power efficiency reached 0.065Â lm/W. The latter showed maximum luminance of 1100Â lm/m2 and the quantum efficiency reached 0.104Â lm/W. The values were higher than those single-layer devices without inorganic/organic hybrid hole transporting layer (HHTL). The improvement in the electroluminescent properties of these devices was attributed to that the introduction of HHTL enhanced hole injection and balanced the combination of hole and electron injected from anode (ITO) and cathode (Mg:Ag).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Organic Electronics - Volume 6, Issues 5â6, December 2005, Pages 237-241
Journal: Organic Electronics - Volume 6, Issues 5â6, December 2005, Pages 237-241
نویسندگان
Fushan Li, Zhijian Chen, Wei Wei, Qihuang Gong,