Efficient green phosphorescent tandem organic light emitting diodes with solution processable mixed hosts charge generating layer

N. A. Talik, K. H. Yeoh, C. Y.B. Ng, B. K. Yap, K. L. Woon

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

A novel solution processable charge generating layer (CGL) that consists of 1,4,5,8,9,11-hexaazatriphenylene hexacarbonitrile (HATCN6)/Poly(N- vinylcarbazole) (PVK): 1,1-bis-(4-bis(4-tolyl)-aminophenyl) cyclohexene (TAPC) for a tandem green phosphorescent organic light emitting diode (PHOLED) is demonstrated. The use of orthogonal solvent to dissolve HATCN6 and PVK:TAPC is the key to overcome the interface erosion problem for the solution processed CGL. The current efficiency of the 2 wt% TAPC mixed with PVK is the highest at 24.2 cd/A, which is more than three-folds higher than that of the single device at 1000 cd/m2.

Original languageEnglish
Pages (from-to)345-349
Number of pages5
JournalJournal of Luminescence
Volume154
DOIs
Publication statusPublished - Oct 2014

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All Science Journal Classification (ASJC) codes

  • Biophysics
  • Biochemistry
  • Chemistry(all)
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics

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