Energy and charge transfer in organic light-emitting diodes: A soluble quinacridone study

S. E. Shaheen, B. Kippelen, N. Peyghambarian, J. F. Wang, J. D. Anderson, E. A. Mash, P. A. Lee, N. R. Armstrong, Y. Kawabe

Research output: Contribution to journalArticlepeer-review

119 Scopus citations

Abstract

The mechanics of Forster energy transfer and charge transfer in organic light emitting diodes (OLED) based on 8-hydroxyquinoline aluminum (Alq3) were studied. A soluble derivative of quinacridone, N-N′-di-isoamyl quinacridone (DIQA) was synthesized and was used with Alq3 to dope films of poly(9-vinylcarbazole) (PVK). Measurements of the photoluminescence (PL) and electroluminescence (EL) of the films indicated a more enhanced efficiency that PVK:Alq3 films. However, the optimal DIQA concentration was found to be lower for EL that for PL.

Original languageEnglish (US)
Pages (from-to)7939-7945
Number of pages7
JournalJournal of Applied Physics
Volume85
Issue number11
DOIs
StatePublished - Jun 1999

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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