Efficient orange light-emitting electrochemical cells

Daniel Tordera, Antonio Pertegás, Nail M. Shavaleev*, Rosario Scopelliti, Enrique Ortí, Henk J. Bolink, Etienne Baranoff, Michael Grätzel, Mohammad K. Nazeeruddin, Etienne Baranoff

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

53 Citations (Scopus)


We report the first bis-cyclometalated cationic iridium(iii) complex with N-aryl-substituted 1H-imidazo[4,5-f][1,10]phenanthroline. The complex emits yellow-orange phosphorescence with a maximum at 583 nm, a quantum yield of 43%, and an excited-state lifetime of 910 ns in argon-saturated dichloromethane. Optimized orange light-emitting electrochemical cells with the new Ir(iii) complex exhibit fast turn-on, a peak luminance of 684 cd m -2 and a peak efficacy of 6.5 cd A -1; in 850 h of continuous operation their luminance and efficacy decrease only by 20%. This journal is

Original languageEnglish
Pages (from-to)19264-19268
Number of pages5
JournalJournal of Materials Chemistry
Issue number36
Publication statusPublished - 28 Sept 2012

ASJC Scopus subject areas

  • Materials Chemistry
  • Chemistry(all)


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