Peng, Ling; Yao, Jing-Wen; Wang, Mei; Wang, Lin-Ye; Huang, Xiao-Lan; Wei, Xin-Feng; Ma, Dong-Ge; Cao, Yong; Zhu, Xu-Hui published the artcile< Efficient soluble deep blue electroluminescent dianthracenylphenylene emitters with CIE y (y ≤ 0.08) based on triplet-triplet annihilation>, Formula: C11H16BNO2, the main research area is deep blue electroluminescent dianthracenylphenylene emitter triplet annihilation.
It has been challenging to develop deep blue organic mol. fluorescent emitters with CIE y (y ≤ 0.08) based on triplet-triplet annihilation (TTA). Here, we report facilely available dianthracenylphenylene-based emitters, which have a 3,5-di(4-t-butylphenyl)phenyl moiety at the one end and 4-cyanophenyl or 3-pyridyl at the other end, resp. Both fluorophores show a high glass transition temperature of over 220°C with a thermal decomposition temperature of over 430°C at an initial weight loss of 1%. The preliminary characterizations of the organic light-emitting diodes (OLEDs) that utilized these nondoped emitters provided high EQEs of 4.6%-5.9% with CIE coordinates (0.15, 0.07-0.08). The anal. of the EL transient decay revealed that TTA contributed to the observed performance. The results show that the new emitters are attractive as a potential TTA-based host to afford stable deep blue fluorescent OLEDs.
Science Bulletin published new progress about Electric current-potential relationship. 329214-79-1 belongs to class pyridine-derivatives, and the molecular formula is C11H16BNO2, Formula: C11H16BNO2.