The "plastic" led: A flexible light-emitting device using a polyaniline transparent electrode

G. Gustafsson, G. M. Treacy, Y. Cao, F. Klavetter, N. Colaneri, A. J. Heeger

Research output: Contribution to journalArticlepeer-review

122 Scopus citations


We describe a light-emitting device that is mechanically flexible; it can be sharply bent and curled without failure. These properties are obtained by using poly(ethylene terephthalate), PET, coated with a thin film of polyaniline as a flexible transparent hole-injecting electrode and soluble semiconducting polymer (poly(2-methoxy,5-(2′-ethyl-hexoxy)-1,4-phenylenevinylene), MEH-PPV, as the emissive layer. The electroluminescent properties of this "plastic" light-emitting diode are the same as those of devices based on indium-tin oxide (ITO) hole injecting contacts, with a turn-on voltage of 2-3 Volts and an external quantum efficiency of about 1%.

Original languageEnglish (US)
Pages (from-to)4123-4127
Number of pages5
JournalSynthetic Metals
Issue number1
StatePublished - Apr 12 1993

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry


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