Bright blue luminescent pyrenyl-containing organosilicon compounds with contrasting charge transport functionality -: SiPh2(p-C6H4-pyrenyl)(p-C6H4-N-benzimidazolyl) and SiPh2(p-C6H4-pyrenyl)[p-C6H4-NPh(1-naph)]

被引：27

作者：

Bai, Dongren ^{[1
]}

Han, Shijin ^{[2
]}

Lu, Zheng-Hong ^{[2
]}

Wang, Suning ^{[1
]}

机构：

[1] Queens Univ, Dept Chem, Kingston, ON K7L 3N6, Canada

[2] Univ Toronto, Dept Mat Sci & Engn, Toronto, ON M5S 3E5, Canada

来源：

CANADIAN JOURNAL OF CHEMISTRY | 2008年 / 86卷 / 03期

关键词：

organosilicon compounds; synthesis; luminescence; electroluminescence; devices;

D O I：

10.1139/V07-151

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The authors investigated the impact of electron-transport and hole-transport functional groups on the properties and the performance of blue luminescent organosilicon compounds as bifunctional materials in organic light-emitting devices. Two new pyrenyl-containing organosilicon compounds, SiPh2(p-C6H4-pyrenyl)(p-C6H4-N-benzimidazolyl) (1) and SiPh2(p-C6H4-pyrenyl)[p-C6H4-NPh(1-naph)] (2) were synthesized. Both compounds display bright blue luminescence in solution and in the solid state with a high quantum efficiency, but they have contrasting electroluminescent properties. The presence of the benzimidazolyl group in 1 enables it to function as a bifunctional material (blue emitter and electron transporter) in OLEDs. An efficient triple-layer (CuPc/NPB/1) blue OLED (C.I.E. 0.15, 0.14) was fabricated successfully. The presence of the NPh(1-naph) group in 2 enables its use as an effective transparent hole injection material, but not a blue emitter in OLEDs.

引用

页码：230 / 237

页数：8

共 32 条

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