Orthogonal Molecular Structure for Better Host Material in Blue Phosphorescence and Larger OLED White Lighting Panel

被引：155
作者：
Ding, Lei [1 ]
Dong, Shou-Cheng [1 ]
Jiang, Zuo-Quan [1 ]
Chen, Hua [1 ]
Liao, Liang-Sheng [1 ]
机构：
[1] Soochow Univ, Inst Funct Nano & Soft Mat FUNSOM, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Suzhou 215123, Jiangsu, Peoples R China
来源：
ADVANCED FUNCTIONAL MATERIALS | 2015年 / 25卷 / 04期
关键词：
host materials; large-size; organic light-emitting diodes; phosphorescence; spiro-structure; HIGHLY EFFICIENT BLUE; EXTERNAL QUANTUM EFFICIENCY; PHOSPHINE OXIDE HOSTS; DRIVING-VOLTAGE BLUE; BIPOLAR HOST; EMITTING-DIODES; TRIPLET ENERGY; SPIRO COMPOUNDS; EXCITED-STATE; RED ELECTROPHOSPHORESCENCE;
D O I：
10.1002/adfm.201403402
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
High-efficiency blue phosphorescence devices with external quantum efficiencies above 25% are developed using a new bipolar host material, diphenyl(10-phenyl-10H-spiro[acridine-9,9-fluoren]-2-yl)phosphine oxide (POSTF), which is constructed in orthogonal molecular structure with a spiro-coree. The separation of bipolarity from effective spiro-fluorene-triphenylamine (STF) structure is elucidated and its versatility in device is evaluated by two kinds of sky-blue phosphors. Noticeably, large-size white light-emitting panel (150 mm x 150 mm) is fabricated with max power efficiency of 75.9 l m W-1 using this new host.
引用
收藏
页码：645 / 650
页数：6
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