Exciton migration and cathode quenching in organic light emitting diodes

被引：95

作者：

Burin, AL

Ratner, MA

机构：

[1] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA

[2] Northwestern Univ, Ctr Mat Res, Evanston, IL 60208 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY A | 2000年 / 104卷 / 20期

关键词：

D O I：

10.1021/jp994162x

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The quantum efficiency of organic light emitting devices depends on the exciton emission efficiency. Exciton quenching at the metal cathode can be responsible for lowering the device performance. We consider exciton quenching by the metal cathode, taking into account both exciton diffusion and radiationless energy transfer to the metal. The quenching effect in tris(8-hydroxyquinoline)aluminum is analyzed, and ways to improve the device efficiency by suppressing the interaction with the electrode are discussed.

引用

页码：4704 / 4710

页数：7

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