Sr/Ag semitransparent cathodes for top emission organic light-emitting devices

S. Y. Kim, D. G. Moon, C. J. Lee, J. I. Han

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

We have developed a semitransparent cathode for the top emission organic light-emitting devices using a Sr/Ag double layer prepared by the thermal evaporation technique. The Sr (8-10 nm)/Ag (10 nm) cathode shows the transmittance of 55-76% in the visible spectral region and the sheet resistance of about 12 Ω/□. The underlying Sr layer affects the growing characteristics of Ag layer, resulting in high optical transparency. The bis[2-(2′-benzothienyl)-pyridinato-N,C3′]iridium( acetylacetonate) doped top emission electro-phosphorescent device with a Sr/Ag semitransparent cathode has been fabricated and studied.

Original languageEnglish
Pages (from-to)2035-2038
Number of pages4
JournalThin Solid Films
Volume517
Issue number6
DOIs
StatePublished - 30 Jan 2009

Keywords

  • Sr/Ag semitransparent cathode
  • Top emission organic light-emitting device
  • Transmittance

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