Ambient laser direct-write printing of a patterned organo-metallic electroluminescent device

Nicholas T. Kattamis, Neil D. McDaniel, Stefan Bernhard, Craig B. Arnold

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

In this work we use laser direct-write (LDW) to fabricate patterned [Ru(dtb-bpy)3]2+(PF6-)2 electroluminescent devices under ambient processing conditions. Device fabrication is accomplished via laser micromachining of a transparent conducting oxide top electrode, LDW printing the active organo-metallic material, and vapor depositing the bottom electrode. Nuclear magnetic resonance spectroscopy is used to ensure the transfer of damage-free luminophore material. Devices tested in air are shown to exhibit emission spectra, luminous efficiencies, and lifetimes similar to literature values for devices fabricated in nitrogen environments. The versatility of laser direct-write printing is then demonstrated by printing multi-color luminophore patterns with diameters down to 10 μm for future use in high-resolution device fabrication. This approach is compatible with large-area organic electronics that require the fabrication of high-resolution architectures.

Original languageEnglish (US)
Pages (from-to)1152-1158
Number of pages7
JournalOrganic Electronics
Volume12
Issue number7
DOIs
StatePublished - Jul 2011

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry
  • Electrical and Electronic Engineering

Keywords

  • Ionic transition metal complexes
  • Laser direct-write
  • Laser-induced forward transfer
  • Organic electronics
  • Organic light-emitting diode

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