White stacked electrophosphorescent organic light-emitting devices employing MoO3 as a charge-generation layer

Hiroshi Kanno, Russell J. Holmes, Yiru Sun, Stephane Kena-Cohen, Stephen R. Forrest

Research output: Contribution to journalArticle

339 Scopus citations

Abstract

The high-efficiency white light stacked organic light emitting devices (SOLED) based on phosphorent emitters with Li-doped electron transporting layer and employing MoO3 as a charge-generation layer was investigated. It was found that the external efficiencies approximately scale with the number of white light emitting subpixels. IOt was observed that the forward viewing and total power efficiencies were relatively independent of the number of elements in the stack. The results show that the use of both electron- and hole-blocking layers, combined with a MoO3/Li-doped Bphen charge-generation layer, ensures a uniform white color balance for each subpixel in the stack, along with very high efficiency for charge injection.

Original languageEnglish (US)
Pages (from-to)339-342
Number of pages4
JournalAdvanced Materials
Volume18
Issue number3
DOIs
StatePublished - Feb 3 2006

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