State Key Laboratory for Mesoscopic Physics and Department of Physics, Peking University , Beijing 100871, P. R. China.
ACS Appl Mater Interfaces. 2012 Jun 27;4(6):2877-80. doi: 10.1021/am300685b. Epub 2012 Jun 11.
Highly efficient deep-blue organic light-emitting devices (OLEDs) have been fabricated using 2,7-di(2,2':6',2″-terpyridin-4-yl)-9,9-dioctyl-9H-fluorene (DTPF) as the emitter, which has a wide energy gap, high emission quantum yield (Φf = 0.88), and high electron transporting property to improve the charge balance. A high efficiency of 2.55 cd/A and 2.67 lm/W are obtained in OLED. The device also exhibits a low turn-on voltage of 3.0 V and Commission Internationale de l'Éclairage (CIE) coordinates of (0.16, 0.09).
采用具有较宽能隙、较高荧光量子产率（Φf=0.88）和良好电子传输性能的 2,7-二（2,2':6',2″-三联吡啶-4-基）-9,9-二辛基-9H-芴（DTPF）作为发光层，制备了高效率的深蓝光有机发光器件（OLEDs）。该器件的电流效率和功率效率分别达到了 2.55 cd/A 和 2.67 lm/W，启亮电压为 3.0 V，CIE 坐标为（0.16，0.09）。
