High Performance White Organic Light-Emitting Diodes with Blue Fluorescence and Red Phosphorescence
作者:Hayoon Lee、Hyeonmi Kang、Hyocheol Jung、Seokwoo Kang、Jongwook Park
DOI:10.1166/jnn.2017.14121
日期:2017.8.1
Highly efficient blue emitting material (DAnP) consisting of anthracene and pyrene was designed and synthesized. The PLmax of the DAnP is 469 nm in the solution state and 480 nm in the film state. DAnP was used as non-doped emitting layer (EMLs) in OLEDs with the following structures: ITO/2-TNATA (60 nm)/NPB (15 nm)/DAnP (35 nm)/Alq3 (20 nm)/LiF (1 nm)/Al (200 nm). The DAnP device has current efficiency of 5.45 cd/A, power efficiency of 2.71 lm/W, and CIEs of (0.19, 0.40) at 10 mA/cm2. An efficient multilayer white organic light-emitting diode (WOLED) with the structure of ITO/NPB (30 nm)/CBP: 3 wt% Ir(piq)3 (10 nm)/DAnP (40 nm)/TPBi (40 nm)/LiF (1 nm)/Al (200 nm) was fabricated and characterized, where DAnP and tris(1-phenylisoquinoline) iridium (III) [Ir(piq)3] were used as a blue fluorescent emitter and a red phosphorescent emitter respectively. A WOLED showed current efficiency of 5.08 cd/A, power efficiency of 2.55 lm/W, and CIEs of (0.35, 0.36) at 10 mA/cm2.
设计并合成了由蒽和芘组成的高效蓝色发光材料(DAnP)。DAnP 在溶液状态下的 PLmax 为 469 nm,在薄膜状态下的 PLmax 为 480 nm。DAnP 被用作具有以下结构的有机发光二极管中的非掺杂发光层(EMLs):ITO/2-TNATA(60 nm)/NPB(15 nm)/DAnP(35 nm)/Alq3(20 nm)/LiF(1 nm)/Al(200 nm)。DAnP 器件的电流效率为 5.45 cd/A,功率效率为 2.71 lm/W,在 10 mA/cm2 时的 CIE 值为 (0.19, 0.40)。一种高效多层白色有机发光二极管(WOLED)的结构为 ITO/NPB (30 nm)/CBP:其中 DAnP 和三(1-苯基异喹啉)铱(III) [Ir(piq)3] 分别用作蓝色荧光发射极和红色磷光发射极。在 10 mA/cm2 的条件下,WOLED 的电流效率为 5.08 cd/A,功率效率为 2.55 lm/W,CIE 为 (0.35, 0.36)。