Triphenylamine-functionalized rhenium (I) complex as a highly efficient yellow-green emitter in electrophosphorescent devices

Document Type

Article

Publication Date

12-29-2006

Abstract

A complex (3-ethyl-2- (4′ -triphenylamino)imidazo[4,5- f] 1,10-phenanthroline) Re (CO)3 Br functionalized by a hole-transport group triphenylamine was used to fabricate organic light-emitting devices (OLEDs). A current efficiency up to 17.6 cdA corresponding to a power efficiency of 9.2 mlW and a peak brightness as high as 6500 cd m2 were obtained. These results represent the best values reported for OLEDs based on rhenium complexes. Enhanced carrier injection capability of Re complex and efficient charge-trapping formation followed by triplet exciton confinement in the emissive layer make for the outstanding electrophosphorescent performances. © 2006 American Institute of Physics.

Publication Source (Journal or Book title)

Applied Physics Letters

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