A novel amorphous oligo(phenylenevinylene) dimer with a biphenyl linkage center and fluorene end groups for electroluminescent devices

Feng He; Hong Xia; Shi Tang; Yu Duan; Ming Zeng; Linlin Liu; Mao Li; Haiquan Zhang; Bing Yang; Yuguang Ma; Shiyong Liu; Jiacong Shen

doi:10.1039/B407262F

A novel amorphous oligo(phenylenevinylene) dimer with a biphenyl linkage center and fluorene end groups for electroluminescent devices

Feng He,^a Hong Xia,^a Shi Tang,^a Yu Duan,^b Ming Zeng,^a Linlin Liu,^a Mao Li,^a Haiquan Zhang,^a Bing Yang,^a Yuguang Ma,*^a Shiyong Liu^b and Jiacong Shen^a

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* Corresponding authors

^a Key Laboratory for Supramolecular Structure and Materials of Ministry of Education, Jilin University, Changchun 130012, P. R. China
E-mail: ygma@jlu.edu.cn
Fax: +86-431-5193421
Tel: +86-431-5618480

^b National Laboratory of Integrated Optoelectronics, Jilin University, Changchun, P. R. China

Abstract

A new type of oligo(phenylenevinylene) dimer, 2,5,2′,5′-tetra(9,9′-dihexylfluorenyl)biphenyl (TFB), with a biphenyl linkage center and four fluorene end groups, has been synthesized by the Wittig reaction. The full characterization of its structure and optical properties, as well as the performance of its electroluminescent devices are presented. TFB shows strong blue fluorescence both in solution and as a solid film. High-quality films of TFB for light-emitting devices (LEDs) can be fabricated both by vacuum evaporation and the spin-coating technique, which is very special and interesting. Single-layer and multi-layer light-emitting devices using TFB as the active layer all show efficient blue emission.

Journal of Materials Chemistry

A novel amorphous oligo(phenylenevinylene) dimer with a biphenyl linkage center and fluorene end groups for electroluminescent devices

Abstract

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A novel amorphous oligo(phenylenevinylene) dimer with a biphenyl linkage center and fluorene end groups for electroluminescent devices

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