Copper hexadecafluorophthalocyanine and copper phthalocyanine as a pure organic connecting unit in blue tandem organic light-emitting devices
Copper hexadecafluorophthalocyanine and copper phthalocyanine as a pure organic connecting unit in blue tandem organic light-emitting devices
复制标题
DOI：
10.1063/1.2426338
复制
发表时间：
2007-01-01
影响因子：
3.2
通讯作者：
Lee, S. T.
中科院分区：
文献类型：
--
作者：
Lai, S. L.;Chan, M. Y.;Lee, S. T.
研究了十六烷基酞菁铜（F16 CuPc）/酞菁铜（CuPc）非掺杂有机体系作为连接单元的基于2-甲基-9，10-二（2-萘基）蒽发光的深蓝色电荧光串联有机电致发光器件（OLED）。在J = 100 mA/cm（2）时，这种器件的电流效率比单单元器件的电流效率提高一倍，从0.63 cd/A提高到1.47 cd/A。纯有机连接单元显示出上级光学透明性（类似于100%），导致器件中的微腔效应最小。F16 CuPc/CuPc界面两侧的界面偶极和能带弯曲表明形成了本征p-n结，这是有效连接单元的先决条件，导致串联OLED性能的显着改善。(c)2007年，美国物理学会。
A nondoped organic system of copper hexadecafluorophthalocyanine (F16CuPc)/copper phthalocyanine (CuPc) has been investigated as a connecting unit for deep-blue electrofluorescent tandem organic light-emitting devices (OLEDs ) based on 2-methyl-9,10-di (2-naphthyl) anthracene emission. Such devices exhibited a doubling in current efficiency from 0.63 to 1.47 cd/A at J = 100 mA/cm(2) as compared to the single-unit device. The pure organic connecting unit showed superior optical transparency (similar to 100%), resulting in minimal microcavity effect in the devices. Interface dipole and band bending on both sides of the F16CuPc/CuPc interface suggested the formation of an intrinsic p-n junction, which is a prerequisite of an effective connecting unit leading to a dramatic performance improvement in the tandem OLEDs. (c) 2007 American Institute of Physics.