Controllably Tuning Excited-State Energy in Ternary Hosts for Ultralow-Voltage-Driven Blue Electrophosphorescence

被引：130

作者：

Han, Chunmiao ^{[1
]}

Zhang, Zhensong ^{[2
]}

Xu, Hui ^{[1
]}

Li, Jing ^{[1
]}

Xie, Guohua ^{[2
]}

Chen, Runfeng ^{[3
]}

Zhao, Yi ^{[2
]}

Huang, Wei ^{[3
]}

机构：

[1] Heilongjiang Univ, Key Lab Funct Inorgan Mat Chem, Minist Educ, Harbin 150080, Peoples R China

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

[3] Nanjing Univ Posts & Telecommun, Key Lab Organ Elect & Informat Displays KOLED, IAM, Nanjing 210046, Jiangsu, Peoples R China

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2012年 / 51卷 / 40期

关键词：

dibenzofuran; electrophosphorescence; excited-state tuning; light-emitting diodes; low-voltage driving; LIGHT-EMITTING-DIODES; PHOSPHINE OXIDE HOST; LOW DRIVING VOLTAGE; HIGH-TRIPLET-ENERGY; HIGHLY-EFFICIENT; BIPOLAR HOST; PHOSPHORESCENT EMISSION; QUANTUM EFFICIENCY; GREEN; RED;

D O I：

10.1002/anie.201202702

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A series of dibenzofuran-based ternary hosts were designed and prepared. The singlet energy levels and carrier injecting/transporting abilities were adjusted on the basis of the mixed meso and short-axis linkages (see picture). By harmonizing the optical and electrical properties, the blue-emitting diodes realized highly efficient blue electrophosphorescence with ultralow driving voltages. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：10104 / 10108

页数：5

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