Dewetting-induced self-organisation of nano-and microstructures for optoelectronic applications

Olaf Karthaus, Chihaya Adachi, Shiho Arakaki, Ayataka Endo, Toshihiro Wada

Research output: Contribution to journalConference articlepeer-review

Abstract

A dewetting process of an evaporating solution is used to form micrometer-sized amorphous droplets, or domes, of the low molar mass solute on substrates such as silicon, mica, glass, and indium-tin-oxide. Using dewetting, the organic hole transporting material of organic light emitting diodes was patterened into micrometer-sized domes on an indium-tin-oxide electrode. Annealing led to a structural change of the domes, which was investigated by optical and electron microscopies. The dewetted dome samples were then coated with electron transport material and top electrode to give functioning organic light emitting diodes. Microscope imaging reveals a strong luminescence from the micrometer-sized domes.

Original languageEnglish
Article number43
Pages (from-to)251-255
Number of pages5
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5648
DOIs
Publication statusPublished - May 27 2005
Externally publishedYes
EventSmart Materials III - Sydney, Australia
Duration: Dec 13 2004Dec 15 2004

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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