کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1442208 1509431 2011 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Cyclometalated iridium(III) complexes with 5-acetyl-2-phenypyridine derived ligands for red phosphorescent OLEDs
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد بیومتریال
پیش نمایش صفحه اول مقاله
Cyclometalated iridium(III) complexes with 5-acetyl-2-phenypyridine derived ligands for red phosphorescent OLEDs
چکیده انگلیسی

A series of new iridium complexes with 5-acetyl-2-phenylpyridine derivatives as ligands was developed. The complexes exhibited high EL performance when applied to OLEDs. These materials showed red emission with a peak at 575–636 nm. In particular, one of the devices in this study showed a maximum luminous efficiency, maximum power efficiency, external quantum efficiency and CIE coordinates of 29.0 cd/A, 6.13 lm/W, 8.86% at 20 mA/cm2 and (0.57, 0.43) at 10 V, respectively. In addition, a deep red OLED with CIE coordinates of (0.67, 0.32) at 10 V exhibited a maximum luminous efficiency, maximum power efficiency and external quantum efficiency of 5.61 cd/A, 1.02 lm/W and 5.35% at 20 mA/cm2, respectively.

Figure optionsDownload as PowerPoint slideHighlights
► We develop six Ir(III) complexes with 5-acetyl-2-phenylpyridine derivatives as ligands.
► We examine changes in increase of π-conjugation in the phenyl moiety.
► Increasing π-conjugation will improve color purity.
► These new Ir(III) complexes (1–6) possess highly efficient electroluminescent properties.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Synthetic Metals - Volume 161, Issues 11–12, June 2011, Pages 1113–1121
نویسندگان
, , , , , ,