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A novel amorphous oligo(phenylenevinylene) dimer with a biphenyl linkage center and fluorene end groups for electroluminescent devices
作者:Feng He, Hong Xia, Shi Tang, Yu Duan, Ming Zeng, Linlin Liu, Mao Li, Haiquan Zhang, Yuguang Ma
關鍵字:electroluminescent devices
論文來源:期刊
具體來源:J. Mater. Chem., 2004,14, 2735-2740
發表時間:2004年
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 usingTFB as the active layer all show efficient blue emission.
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