Lithography-free high-resolution organic transistor arrays on polymer substrate by low energy selective laser ablation of inkjet-printed nanoparticle film

Seung H. Ko, Heng Pan, Costas P. Grigoropoulos, Jean M J Fréchet, Christine K. Luscombe, Dimos Poulikakos

Research output: Contribution to journalArticlepeer-review

67 Scopus citations

Abstract

Inkjet direct writing of functional materials provides a promising pathway towards realization of ultra-low-cost, large-area printed electronics, albeit at the expense of lowered resolution (∼20-50 μm). We demonstrate that selective laser sintering and ablation of inkjet-printed metal nanoparticles enables low-temperature metal deposition as well as high-resolution patterning. Combined with an air-stable carboxylate-functionalized polythiophene, all-inkjet-printed and laser-processed organic field effect transistors with micron to submicron critical feature resolution were fabricated in a fully maskless sequence, eliminating the need for any lithographic processes. All processing and characterization steps were carried out at plastic-compatible low temperatures and in air under ambient pressure.

Original languageEnglish (US)
Pages (from-to)579-587
Number of pages9
JournalApplied Physics A: Materials Science and Processing
Volume92
Issue number3
DOIs
StatePublished - Aug 2008
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Physics and Astronomy (miscellaneous)

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