Highly efficient greenish blue-emitting organic diodes based on pyrene derivatives

Cheng Hsien Yang, Tzung Fang Guo, I. Wen Sun

Research output: Contribution to journalArticlepeer-review

41 Citations (Scopus)

Abstract

We report the synthesis of pyrene derivatives as the light emissive layer for highly efficient organic electroluminescence (EL) diodes. Multilayer devices were fabricated with pyrene derivatives (ITO/NPB (50 nm)/blue material (30 nm)/BCP (10 nm)/Alq3 (30 nm)/LiF (1 nm)/Al). By using 1,1′-dipyrene (DP) and 1,4-dipyrenyl benzene (DPB), the devices produced the blue EL emissions with 1931 Commission International de L'Eclairage coordinates of (x = 0.21, y = 0.35) and (x = 0.19, y = 0.25), respectively. The device with DPB shows a maximum brightness of 42,445 cd/m2 at 400 mA/cm2 and the luminance efficiency of 8.57 cd/A and 5.18 lm/W at 20 mA/cm2.

Original languageEnglish
Pages (from-to)93-98
Number of pages6
JournalJournal of Luminescence
Volume124
Issue number1
DOIs
Publication statusPublished - 2007 May

All Science Journal Classification (ASJC) codes

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

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