کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1320805 1499849 2015 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Highly efficient solution-processed pure red phosphorescent organic light-emitting diodes using iridium complexes based on 2,3-diphenylquinoxaline ligand
ترجمه فارسی عنوان
دیودهای نوری آلی فسفرسد خالص قرمز با کارایی بسیار کارآمد و با استفاده از مجتمع های ایریدیوم بر پایه لیگاند 2،3-دیفنیلکینکسالین
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
چکیده انگلیسی


• Two pure red and highly efficient phosphorescent iridium(III) complexes were developed.
• CIE coordinates remained stable on increasing current density.
• They are soluble in organic solvents and uniform thin films can be spin-coated onto substrates.

We synthesized two highly efficient red phosphorescent Ir(III) complexes, bis[2,3-diphenylquinoxalinato-N,C2′]iridium(III) pyrazinate (dpq)2Ir(prz) (1) and bis[2,3-diphenylquinoxalinato- N,C2′]iridium(III) 5-methylpyrazinate (dpq)2Ir(mprz) (2), which are both based on the use of 2,3-diphenylquinoxaline as the ligand, and investigated their photophysical, electrochemical, and electroluminescence (EL) properties. Both Ir(III) complexes are soluble in common organic solvents and uniform thin films can be readily spin-coated onto substrates. Phosphorescent organic light-emitting diodes (PhOLEDs) produced using the ITO/PEDOT:PSS/TCTA:TPBi:Ir(III) complex/cathode configuration, had a maximum external quantum efficiency of 7.32% and a luminance efficiency of 7.15 cd/A with a CIE coordinate of (0.70, 0.30) for compound 2. CIE coordinates remained stable on increasing current density. To the best of our knowledge, the efficiencies of these PhOLEDs are higher than those previously reported for solution-processed pure red PhOLEDs.

Two pure red and highly efficient phosphorescent iridium(III) complexes were developed. CIE coordinates remained stable on increasing current density.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Organometallic Chemistry - Volume 794, 1 October 2015, Pages 197–205
نویسندگان
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