کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1268563 972410 2008 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A host material containing tetraphenylsilane for phosphorescent OLEDs with high efficiency and operational stability
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
A host material containing tetraphenylsilane for phosphorescent OLEDs with high efficiency and operational stability
چکیده انگلیسی

A host material containing tetraphenylsilane moiety, 9-(4-triphenylsilanyl-(1,1′,4,1′′)-terphenyl-4′′-yl)-9H-carbazole (TSTC), was synthesized for green phosphorescent organic light emitting diodes. The tetraphenylsilane moiety was introduced to provide high triplet energy level, thermal and chemical stability, and glassy properties leading to high efficiency and operational stability of the devices. Ir(ppy)3 based OLEDs using the TSTC host and DTBT (2,4-diphenyl-6-(4′-triphenylsilanyl-biphenyl-4-yl)-1,3,5-triazine) hole blocking layer (HBL) resulted in the maximum external quantum efficiency of 19.8% and the power efficiency of 59.4 lm/W. High operational stability with a half lifetime of 160,000 h at an initial luminance of 100 cd/m2 was achieved from an electrophosphorescent device using TSTC host and BAlq HBL.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Organic Electronics - Volume 9, Issue 4, August 2008, Pages 452–460
نویسندگان
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