کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1665243 | 1518042 | 2014 | 4 صفحه PDF | دانلود رایگان |
• High quantum efficiency of 19.5% in blue phosphorescent organic light-emitting diodes
• Stable film morphology using benzofuropyridine and pyridofuropyridine derivatives
• High efficiency solution processed blue phosphorescent organic light-emitting diodes
Soluble blue phosphorescent organic light-emitting diodes were developed using a pyridofuropyridine derivative, 3-(3-(carbazole-9-yl)phenyl) pyrido[3′,2′:4,5]furo[2,3-b]pyridine (CzPFP), and a benzofuropyridine derivative, 6-(3-(carbazole-9-yl)phenyl)benzofuro[2,3-b]pyridine (PCz-6BFP) as host materials. The CzPFP and PCz-6BFP hosts formed a smooth film morphology with a surface roughness less than 0.5 nm after spin coating. The PCz-6BFP host showed better quantum efficiency than the CzPFP host and a high quantum efficiency of 19.5% was achieved in solution processed blue phosphorescent organic light-emitting diodes using the PCz-6BFP host.
Journal: Thin Solid Films - Volume 562, 1 July 2014, Pages 608–611