کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10363104 870927 2013 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Novel carbazole/anthracene hybrids for efficient blue organic light-emitting diodes
ترجمه فارسی عنوان
هیبریدی کرباسول / آنتراسن جدید برای دیود های افراطی آلی تولید شده با آبی کارآمد
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر سخت افزارها و معماری
چکیده انگلیسی
Two novel carbazole/anthracene hybrided molecules, namely 2-(anthracen-9-yl)-9-ethyl-9H-carbazole (AnCz) and 2,7-di(anthracen-9-yl)-9-ethyl-9H-carbazole (2AnCz), were designed and synthesized via palladium catalyzed coupling reaction. The anthracene was attached either at the 2-site (AnCz) or at both 2,7-sites (2AnCz) of the central carbazole core to tune the conjugation state and the optoelectronic properties of the resultant molecules. Both of them show good solubility in common organic solvents. They also possess relatively high HOMO levels (−5.39 eV, −5.40 eV) that would facilitate efficient hole injection and be favorable for high power efficiencies when used in organic light-emitting devices (OLEDs). AnCz and 2AnCz were used as non-doped emitter to fabricate OLEDs by vacuum evaporation. Good performance was achieved with maximum luminance efficiency of 2.61 cd A−1 and CIE coordinates of (0.15, 0.12) for AnCz, and 9.52 cd A−1 and (0.22, 0.37) for 2AnCz.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Displays - Volume 34, Issue 5, December 2013, Pages 447-451
نویسندگان
, , ,