共轭不对称给体取代的 1,3,5-三嗪：用于蓝色磷光有机发光二极管的新型主体材料。

Conjugated asymmetric donor-substituted 1,3,5-triazines: new host materials for blue phosphorescent organic light-emitting diodes.

机构信息

Key Laboratory for Organic Electronics & Information Displays (KLOEID) and Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications (NUPT), 9 Wenyuan Road, Nanjing 210046, PR China.

出版信息

Chemistry. 2011 Sep 19;17(39):10871-8. doi: 10.1002/chem.201101118. Epub 2011 Sep 2.

DOI:10.1002/chem.201101118

PMID:21887832

Abstract

Conjugated asymmetric donor-substituted 1,3,5-triazines (ADTs) have been synthesized by nucleophilic substitution of organolithium catalyzed by [Pd(PPh(3))(4)]. Theoretical and experimental investigations show that ADTs possess high solubility and thermostability, high fluorescent quantum yield (35%), low HOMO (-6.0 eV) and LUMO (-2.8 eV), and high triplet energy (E(T), 3.0 eV) according to the different substitution pattern of triazine. The application as host materials for blue PHOLEDs yielded a maximum current efficiency of 20.9 cd A(-1), a maximum external quantum efficiency of 9.8%, and a brightness of 9671 cd m(-2) at 5.4 V, making ADTs good candidates for optoelectronic devices.

摘要

已通过 [Pd(PPh(3))(4)] 催化的有机锂亲核取代反应合成了共轭不对称供体取代的 1,3,5-三嗪（ADTs）。理论和实验研究表明，根据三嗪的不同取代模式，ADTs 具有高溶解性和热稳定性、高荧光量子产率（35%）、低 HOMO（-6.0 eV）和 LUMO（-2.8 eV）以及高三重态能量（E(T)，3.0 eV）。将其作为蓝色磷光 OLED 的主体材料，在 5.4 V 时可获得 20.9 cd A(-1)的最大电流效率、9.8%的最大外量子效率和 9671 cd m(-2)的亮度，这使得 ADTs 成为光电设备的良好候选材料。