Dyes and Pigments ( IF 4.1 ) Pub Date : 2018-06-07 , DOI: 10.1016/j.dyepig.2018.06.008 Guobin Ma , Huaxin Zhao , Jing Wang , Yuping Le , Haizhen Jiang , Hongmei Deng , Jian Hao , Wen Wan
Two series of fluorine-containing fluorenyl anthracenes linked by a rigid sp3-hybridized carbon atom have been synthesized and characterized. The effect of a fluorine auxochrome at different positions in fluorene moiety on bulk properties, such as photophysical, electrochemical properties and thermal stabilities were investigated. The non-doped organic light-emitting diodes (OLEDs) utilizing C9-methylated fluorinated fluorenyl anthracene 4b as the emitter exhibits deep-blue emissions CIE x, y (0.159, 0.106) with efficiency of 1.31 cd/A and a maximum brightness of 2040 cd/m2 at 14 V. It was found that the introduction of fluorine auxochrome to the C2 position of fluorene could afford the best performances of OLEDs among the fluorinated materials.
中文翻译:
C9-芴基蒽中氟辅助色素对蓝色电致发光材料光电性能的研究
已经合成并表征了通过刚性的sp 3-杂化碳原子连接的两个系列的含氟芴基蒽。研究了芴部分不同位置的氟辅助色素对本体性质(如光物理,电化学性质和热稳定性)的影响。使用C9-甲基化的氟化芴基蒽4b作为发射极的非掺杂有机发光二极管(OLED)表现出深蓝色发射CIE x,y(0.159,0.106),效率为1.31 cd / A,最大亮度为2040在14 V时为cd / m 2。已发现将氟辅助铬引入芴的C2位可以提供氟化材料中OLED的最佳性能。