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

Runfeng Chen; Rui Zhu; Chao Zheng; Shujuan Liu; Quli Fan; Wei Huang

doi:10.1007/s11426-008-0143-z

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

Runfeng Chen, Rui Zhu, Chao Zheng, Shujuan Liu, Quli Fan, Wei Huang

Research output: Contribution to journal › Article › peer-review

33 Scopus citations

Abstract

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/m² 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/m² 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.

Original language	English
Pages (from-to)	212-218
Number of pages	7
Journal	Science in China, Series B: Chemistry
Volume	52
Issue number	2
DOIs	https://doi.org/10.1007/s11426-008-0143-z
State	Published - Feb 2009
Externally published	Yes

Keywords

Conjugated polymers
Germafluorene
Heteroatom-containing polymers
Host material
Light-emitting diodes (LEDs)

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10.1007/s11426-008-0143-z

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abstract = "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/m2 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/m2 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.",

keywords = "Conjugated polymers, Germafluorene, Heteroatom-containing polymers, Host material, Light-emitting diodes (LEDs)",

author = "Runfeng Chen and Rui Zhu and Chao Zheng and Shujuan Liu and Quli Fan and Wei Huang",

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T1 - Germafluorene conjugated copolymer-synthesis and applications in blue-light-emitting diodes and host materials

AU - Chen, Runfeng

AU - Zhu, Rui

AU - Zheng, Chao

AU - Liu, Shujuan

AU - Fan, Quli

AU - Huang, Wei

PY - 2009/2

Y1 - 2009/2

N2 - 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/m2 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/m2 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.

AB - 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/m2 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/m2 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.

KW - Conjugated polymers

KW - Germafluorene

KW - Heteroatom-containing polymers

KW - Host material

KW - Light-emitting diodes (LEDs)

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

Abstract

Keywords

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