Highly efficient phosphorescence from organic light-emitting devices with an exciton-block layer

Ikai, Masamichi; Tokito, Shizuo; Sakamoto, Youichi; Suzuki, Toshiyasu; Taga, Yasunori

doi:10.1063/1.1385182

Public

Highly efficient phosphorescence from organic light-emitting devices with an exciton-block layer

Published in Applied Physics Letters • Jul 9, 2001

Authors:

Masamichi Ikai

Shizuo Tokito

Youichi Sakamoto

Abstract

One of the keys to highly efficient phosphorescent emission in organic light-emitting devices is to confine triplet excitons generated within the emitting layer. We employ “starburst” perfluorinated phenylenes (C60F42) as a both hole- and exciton-block layer, and a hole-transport material 4,4′,4″-tr...

Subject

Phosphorescence

Electroluminescence

Phosphorescent organic light-emitting diode

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