Germafluorene conjugated copolymer-synthesis and applications in blue-light-emitting diodes and host materials

被引：28

作者：

Chen RunFeng ^{[1
]}

Zhu Rui ^{[2
]}

Zheng Chao ^{[1
]}

Liu ShuJuan ^{[1
]}

Fan QuLi ^{[1
]}

Huang Wei ^{[1
]}

机构：

[1] Nanjing Univ Posts & Telecommun, Inst Adv Mat, Jiangsu Key Lab Organ Elect & Informat Displays, Nanjing 210046, Peoples R China

[2] Fudan Univ, Inst Adv Mat, Shanghai 200433, Peoples R China

来源：

SCIENCE IN CHINA SERIES B-CHEMISTRY | 2009年 / 52卷 / 02期

基金：

中国国家自然科学基金;

关键词：

conjugated polymers; germafluorene; heteroatom-containing polymers; host material; light-emitting diodes (LEDs); HIGH-EFFICIENCY; POLYMERS; FLUORENE; DERIVATIVES; EMISSION; GAP;

D O I：

10.1007/s11426-008-0143-z

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A germafluorene-fluorene copolymer was successfully obtained via Suzuki polymerization. The germanium containing copolymer has an efficient blue light emission under the ultraviolet irradiation and its single layer EL device showed the highest brightness of 2630 cd/m(2) at 7.8 V and the highest efficiency of 0.301 lm/W at 6.2 V. The copolymer can also serve as the host material for phosphorescent metal complexes with the maximum brightness of 15600 cd/m(2) and the quantum efficiency of 8.5%. The results are quite promising and promise that as its analogs of fluorene and silafluorene, germafluorene is an excellent building block for blue light-emitting polymers and host materials.

引用

页码：212 / 218

页数：7

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