Photo-patterning of highly efficient state-of-the-art phosphorescent OLEDs using orthogonal hydrofluoroethers

S. Krotkus, F. Ventsch, D. Kasemann, A.A. Zakhidov, S. Hofmann, K. Leo, M.C. Gather

Research output: Contribution to journalArticlepeer-review

Abstract

Photolithography offers a scalable solution for large area pixel patterning of organic light-emitting diode (OLED) displays. It has been limited due to the incompatibility of traditional processing steps with the majority of organic materials. In this work, photolithographic structuring of state-of-the-art phosphorescent red p-i-n OLEDs is demonstrated using fluorinated polymers in combination with hydrofluoroether solvents. This is the first report on photolithographically patterned OLEDs with state-of-the-art efficiency and good long-term stability.
Original languageEnglish
Pages (from-to)1043-1048
Number of pages6
JournalAdvanced Optical Materials
Volume2
Issue number11
Early online date10 Sept 2014
DOIs
Publication statusPublished - Nov 2014

Keywords

  • Orthogonal photolighography
  • Hydrofluoroethers
  • Phosphorescent OLEDs
  • Doped organic layers

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