Conjugated Asymmetric Donor-Substituted 1,3,5-Triazines: New Host Materials for Blue Phosphorescent Organic Light-Emitting Diodes

被引：80

作者：

An, Zhong-Fu ^{[1
,2
]}

Chen, Run-Feng ^{[1
,2
]}

Yin, Jun ^{[1
,2
]}

Xie, Guo-Hua ^{[3
]}

Shi, Hui-Fang ^{[1
,2
]}

Tsuboi, Taiju ^{[4
]}

Huang, Wei ^{[1
,2
]}

机构：

[1] NUPT, KLOEID, Nanjing 210046, Peoples R China

[2] NUPT, IAM, Nanjing 210046, Peoples R China

[3] Jilin Univ, State Key Lab Integrated Optoelect, Coll Elect Sci & Engn, Changchun 130012, Peoples R China

[4] Kyoto Sangyo Univ, Fac Engn, Kyoto 6038555, Japan

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2011年 / 17卷 / 39期

基金：

中国国家自然科学基金;

关键词：

asymmetric architectures; conjugation; donor-acceptor systems; organic light-emitting diodes; lithium; phosphorescence; HIGHLY EFFICIENT; SOLAR-CELLS; BIPOLAR HOST; OPTICAL-PROPERTIES; CHARGE-TRANSFER; POLYMERS; DERIVATIVES; COPOLYMERS; ELECTROLUMINESCENCE; OLIGOMERS;

D O I：

10.1002/chem.201101118

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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.

引用

页码：10871 / 10878

页数：8

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