کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6599410 1423886 2018 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Near-infrared emission of dinuclear iridium complexes with hole/electron transporting bridging and their monomer in solution-processed organic light-emitting diodes
ترجمه فارسی عنوان
انتشار مادون قرمز نزدیک مجتمع های ایریدیوم دو هسته ای با مورب حمل و نقل سوراخ / الکترون و مونومر آنها در دیودهای آبی نوردهی شده با محلول
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی
Two dinuclear iridium (III) complexes D-Ir-Caz and D-Ir-OXD grafting hole or electron transporting π-conjugated bridges, and their corresponding monomer Mono-Ir were successfully synthesized and characterized. Under photo-excitation, all these complexes exhibit similar NIR emission peaked at approximately 698 nm in CH2Cl2. Due to a lower degree of spin-orbit coupling (SOC) in a system with centrosymmetric environment at the ancillary ligand, both dinuclear iridium (III) complexes D-Ir-Caz and D-Ir-OXD exhibited a much lower luminescence quantum yields (ΦL) in comparison with their corresponding monomer complex Mono-Ir. Furthermore, the Mono-Ir-based device shows a EQE of 1.29% at 3.5 mA/cm2, while D-Ir-Caz- and D-Ir-OXD-based devices suffer relatively lower efficiencies of 0.27% and 0.41% accompanied with a negligible efficiency roll-off.183
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Dyes and Pigments - Volume 149, February 2018, Pages 315-322
نویسندگان
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