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Blue light-emitting, electron-transporting materials based on ethynyl-linked D–A systems

作者: Zhao ZJ, Zhang P, Wang F, Wang ZX, Lu P, Tian WJ*
來源出版物: CHEMICAL PHYSICS LETTERS    卷: 423    期: 4-6    頁: 293-296    出版年: JUN 1 2006
摘要: Two ethynyl-linked pi-conjugated compounds with bright blue photoluminescence property were designed, synthesized and fully characterized. The main structures of them contain a pyrene as electron acceptor, a carbazole as electron donor linked by an ethynyl unit. This D-A system has increased electron mobility and high quantum yields. One of the compounds was sandwiched as luminescent in single- and double-layer devices. By incorporating Alq as electron transport layer, the double-layer device exhibits dramatically improved performances compared with the single-layer device. The compounds are promising blue light-emitting and electron-transport materials.

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