Exciplex current mechanism for ambipolar bilayer organic light emitting diodes

Feilong Liu, P. Paul Ruden, Ian H. Campbell, Darryl L. Smith

Research output: Contribution to journalArticle

13 Scopus citations

Abstract

The effect of exciplex dynamics on the current in a bilayer organic light emitting diode with ambipolar injection is explored. Exciplex formation facilitates intermolecular electron-hole recombination across the interface. We discuss the characteristics of the exciplex recombination current with respect to different energy level alignments, interface recombination rates, and exciplex relaxation lifetimes, using a model device consisting of a C 60/tetracene bilayer.

Original languageEnglish (US)
Article number123301
JournalApplied Physics Letters
Volume99
Issue number12
DOIs
StatePublished - Sep 19 2011

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