Long-living light-emitting electrochemical cells - Control through supramolecular interactions

Henk J. Bolink, Eugenio Coronado, Rubén D. Costa, Enrique Ortí, Michele Sessolo, Stefan Graber, Kevin Doyle, Markus Neuburger, Catherine E. Housecroft, Edwin C. Constable

Research output: Contribution to journalArticle

167 Citations (Scopus)

Abstract

A study was conducted to demonstrate the preparation and characteristics of a supramolecularly caged ionic iridium(III) complex [Ir(ppy) 2(Hpbpy)][PF6], where ppy is 2-phenylpyridine and Hpbpy is 6-phenyl-2,2'-bipyridine. The second complex was compared with the parent complex, [Ir(ppy)2(Hpbpy)][PF6] during investigations. It was demonstrated that the lifetime of a simple electroluminescent device employing air-stable electrodes and supramolecularly-caged complex, as the active component is more than 3000 hours at an average luminance of 200 cd m-2, while operating at a driving voltage of 3 volts. The large increase in lifetime was obtained, without sacrificing the device turn-on time.

Original languageEnglish
Pages (from-to)3910-3913
Number of pages4
JournalAdvanced Materials
Volume20
Issue number20
DOIs
Publication statusPublished - 2008 Oct 17
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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