Feng Gao, Jing Ren, Zhanfeng Li
Nov 1, 2015
Citations
0
Influential Citations
6
Citations
Journal
Optical Materials Express
Abstract
A trifluoromethyl-substituted 9,9′-bianthracene derivative named 10,10′-bis(3-trifluoromethylphenyl)-9,9′-bianthracene (BAn-(3)-CF3) has been designed and synthesized for organic light-emitting device (OLED). The compound is thermally stable with high decomposition temperature (Td = 356 °C) and glass transition temperature (Tg = 266 °C). Non-doped deep blue OLED using BAn-(3)-CF3 as the emitter shows the Commission Internationale de l'Eclairage (CIE) coordinates of (0.156, 0.142), which is indicative of excellent blue color purity. Furthermore, BAn-(3)-CF3 serves as an excellent host material doped for 4,4-bis[4-(di-p-tolylamino)styryl]biphenyl (DPAVBi) to get high-performance blue OLED with low turn-on voltage of 3.8 V, high luminance of over 12000 cd/m2, high current efficiency of 5.88 cd/A and high external quantum efficiency (EQE) of 3.15%.