کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10619129 988207 2005 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis and electrophosphorescent performances of alkyl-substituted bicycloiridium complexes in polymer light-emitting diodes
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد بیومتریال
پیش نمایش صفحه اول مقاله
Synthesis and electrophosphorescent performances of alkyl-substituted bicycloiridium complexes in polymer light-emitting diodes
چکیده انگلیسی
In this paper, two complexes (mppy)2Ir(tmd) and (bppy)2Ir(tmd) were synthesized and doped into PVK. We find that the alkyl substitution of bicycloiridium complexes on acetylacetonate ligand has a great effect on optimizing the PLED performances. The best device performance is observed for the (bppy)2Ir(tmd)-doped PVK-PBD (40 wt%) device with the concentration of 1 wt%. A maximal external quantum efficiency of QEext = 14.2% ph/el and the luminous efficiency of LE = 33 cd/A with a luminance of 2099 mA/cm2 were achieved at a current density of 6.4 mA/cm2.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Synthetic Metals - Volume 155, Issue 1, 15 October 2005, Pages 196-201
نویسندگان
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