Combinatorial fabrication and study of doped-layer-thickness-dependent color evolution in bright small molecular organic light-emitting devices

被引：23

作者：

Cheon, KO ^{[1
]}

Shinar, J

机构：

[1] Iowa State Univ, US DOE, Ames Lab, Ames, IA 50011 USA

[2] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA

来源：

APPLIED PHYSICS LETTERS | 2003年 / 83卷 / 10期

关键词：

D O I：

10.1063/1.1601674

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The behavior of [N,N-'-diphenyl-N,N-'-bis(1-naphthylphenyl)-1,1(')-biphenyl-4,4(')-diamine (alpha-NPD)]/[5+/-0.6 wt % [(2-methyl-6-{2-[2,3,6,7-tetrahydro-1H,5H-benzo(i,j)quinolizin-9-yl] ethenyl}-4H-pyran-4-ylidene)propane-dinitrile (DCM2)-doped alpha-NPD]/[4,4(')-bis(2,2(')-diphenylvinyl)-1,1(')-biphenyl] organic light-emitting devices is described. The color of the devices shifts from blue to red as the thickness of the doped layer increases from 0 to 35 Angstrom. The 2-Angstrom-thick doped layer device exhibited the highest brightness Lsimilar to120 Cd/m(2) and external quantum efficiency eta(ext)similar to4.4% at a current density of 1 mA/cm(2). (C) 2003 American Institute of Physics.

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页码：2073 / 2075

页数：3

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