Physics and applications of organic microcavity light emitting diodes

被引:281
作者
Dodabalapur, A
Rothberg, LJ
Jordan, RH
Miller, TM
Slusher, RE
Phillips, JM
机构
[1] Bell Laboratories, Lucent Technologies, Murray Hill, NJ 07974
[2] University of Rochester, Rochester, NY
[3] Eastman Kodak, Rochester, NY
[4] CPS Chemical Co., Old Bridge, NJ
[5] Sandia National Laboratories, Albuquerque, NM
关键词
D O I
10.1063/1.363768
中图分类号
O59 [应用物理学];
学科分类号
摘要
The important changes produced on the electroluminescence characteristics of organic materials due to planar microcavity effects are examined in detail. The photon density of states is redistributed such that only certain wavelengths, which correspond to allowed cavity modes, are emitted in a given direction. This enables us to realize color selectivity over a large wavelength (and color coordinate) range with broadband emitters such as 8-hydroxyquinoline aluminum (Alq), and intensity enhancement in narrow band emitters, The intensity enhancement in Alq-based cavity light emitting diodes (LEDs) is extensively evaluated both experimentally and theoretically. The design considerations for and device characteristics of a novel multiple emissive layer LED are also described. (C) 1996 American Institute of Physics.
引用
收藏
页码:6954 / 6964
页数:11
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