Synthesis and optoelectronic properties of a solution-processed red-emitting tetra(arylvinyl)anthracene cruciform
Synthesis and optoelectronic properties of a solution-processed red-emitting tetra(arylvinyl)anthracene cruciform
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DOI：
10.1016/j.dyepig.2015.07.006
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发表时间：
2015-12
影响因子：
4.5
通讯作者：
B. Hua;Yangyang Gao;S. Ying;W. Liu;S. Xue;Wenjun Yang
中科院分区：
文献类型：
--
作者：
B. Hua;Yangyang Gao;S. Ying;W. Liu;S. Xue;Wenjun Yang
本文报道了一种新的蒽为中心的十字形化合物2，6-双（9，9-二（2-乙基己基）芴-2-基-乙烯基-2）-9，10-双（9-（2-乙基己基）咔唑-3-基-乙烯基-2）蒽（FCA）（二乙基磷酰基甲基）-9，10-二溴蒽和9-（2-乙基己基）-3-乙烯基咔唑，然后与9，9-二（2-乙基己基）-2-甲酰基芴进行Wittig-Horner反应。强扭曲的9，10-分支的存在使FCA具有适度的聚集增强发光和压致荧光，大量支链的引入使FCA具有良好的溶解性和成膜能力，FCA可作为溶液处理的发光层，其红光发射峰值波长为612 nm，最大发光效率为1.3 cd/A。
In this paper, we report the synthesis and optoelectronic properties of a new anthracene-centered cruciform, 2,6-bis(9,9-di(2-ethylhexyl)fluorene-2-yl-vinyl-2)- 9,10-bis(9-(2-ethylhexyl)carbazole-3-yl-vinyl-2)anthracene (FCA).FCAwas prepared by the Heck coupling 2,6-bis(diethoxylphosphorylmethyl)-9,10- dibromoanthracene and 9-(2-ethylhexyl)-3-vinylcabazole, followed by the Wittig–Horner reaction with 9,9-di(2-ethylhexyl)-2-formylfluorene. The existence of strongly twisted 9,10-branch madeFCAexhibit moderate aggregation-enhanced emission and piezofluorochromism, and the introduction of numerous branched alkyl chains renderFCAwith good solubility and film-forming ability.FCAcould be used as solution-processed light-emitting layer to afford red emission with peak wavelength of 612 nm and maximal luminous efficacy of 1.3 cd/A.