Kim Beomjin, Park Youngil, Shin Hwangyu, Lee Jiwon, Park Jongwook
Department of Chemistry/Display Research Center, The Catholic University of Korea, Bucheon, 420-743, Republic of Korea.
J Nanosci Nanotechnol. 2011 Aug;11(8):7508-11. doi: 10.1166/jnn.2011.4842.
Two color white organic light-emitting diode (WOLED) that used a co-host system in a solution process method was prepared. A device configuration is ITO/PEDOT:PSS (40 nm)/emitting layer (50 nm)/TPBi (20 nm)/LiF (1 nm)/Al. The emitting layer consists of TATa+ alpha-NPB or beta-NPB + DPAVBi (blue dopant) + Rubrene (yellow dopant). The device using alpha-NPB or beta-NPB showed white color of CIE (0.30, 0.40) and (0.29, 0.39), respectively. Device efficiency of alpha-NPB was 3.85 cd/A at 100 mA/cm2, which is about 15% higher than beta-NPB's.
制备了一种采用共主体体系的溶液法双色白色有机发光二极管（WOLED）。器件结构为ITO/PEDOT:PSS（40纳米）/发光层（50纳米）/TPBi（20纳米）/LiF（1纳米）/Al。发光层由TATa + α-NPB或β-NPB + DPAVBi（蓝色掺杂剂）+ 红荧烯（黄色掺杂剂）组成。使用α-NPB或β-NPB的器件分别显示出CIE坐标为（0.30, 0.40）和（0.29, 0.39）的白色。α-NPB器件在100 mA/cm² 时的效率为3.85 cd/A，比β-NPB的效率高约15%。
