Synthesis and Electro-Optical Properties of Carbazole-Substituted Pyrene Derivatives
作者:Seonju Jeong、Sung Hwan Park、Ki-Soo Kim、Younghwan Kwon、Ki-Ryong Ha、Byeong-Dae Choi、Yoon Soo Han
DOI:10.1166/jnn.2011.3683
日期:2011.5.1
Mono and dicarbazole-substituted pyrene derivatives, 9H-carbazol-9-ylpyrene (MCzP) and 1,6-di(9H-carbazol-9-yl)pyrene (DCzP), with dual-purpose function as a blue emitting and charge transporting layer in organic light emitting diodes, were synthesized and characterized. These series of molecules consisted of an electron donating (D) carbazole and an electron accepting (A) pyrene in D-A and D-A-D shapes. Non-doped blue electroluminescent devices with the configurations of ITO (150 nm)/α-NPD (30 nm)/DCzP (40 nm)/LiF (1 nm)/Al (150 nm) (D1) and ITO (150 nm)/2-TNATA (15 nm)/α-NPD (20 nm)/DCzP (40 nm)/BCP (15 nm)/Alq3 (10 nm)/LiF (1 nm)/Al (120 nm) (D2) were fabricated. D1 and D2 devices showed blue emission at 492 nm and 488 nm, and maximum luminance of 840 and 7560 cd/m2 obtained at 13 V and 15 V, respectively.
合成并表征了单咔唑和二咔唑取代的芘衍生物--9H-咔唑-9-基芘(MCzP)和 1,6-二(9H-咔唑-9-基)芘(DCzP),它们在有机发光二极管中具有蓝色发光层和电荷传输层的双重功能。这些系列分子由一个电子供体(D)咔唑和一个电子受体(A)芘组成,呈 D-A 和 D-A-D 两种形状。制备了 ITO (150 nm)/α-NPD (30 nm)/DCzP (40 nm)/LiF (1 nm)/Al (150 nm) (D1) 和 ITO (150 nm)/2-TNATA (15 nm)/α-NPD (20 nm)/DCzP (40 nm)/BCP (15 nm)/Alq3 (10 nm)/LiF (1 nm)/Al (120 nm) (D2) 结构的非掺杂蓝色电致发光器件。D1 和 D2 器件分别在 492 nm 和 488 nm 处发出蓝色光,在 13 V 和 15 V 电压下的最大亮度分别为 840 和 7560 cd/m2。