Laser-direct fabrication of invisible Ag nanowire electrode pattern on flexible plastic substrate

Harim Oh, Myeongkyu Lee

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We show that invisible Ag nanowire (AgNW) electrode pattern can be directly fabricated on plastic substrate using a laser. Our method, which is fundamentally based on the Rayleigh instability, is to block the current flow in selected areas by cutting nanowires. AgNW film spin-coated on a polyethylenetherephthalate substrate was selectively irradiated using a nanosecond-pulsed laser beam to produce a patterned structure consisting of spatially separated conducting and insulating regions. Since the laser-cut nanowires remain on the substrate, the electrode pattern fabricated by this approach can be invisible. Although Ag nanowires were instantaneously heated above 220 °C by the laser beam, a very short exposure time of 10− 3–10− 4 s prevented the substrate from being damaged.

Original languageEnglish
Pages (from-to)375-383
Number of pages9
JournalThin Solid Films
Volume636
DOIs
Publication statusPublished - 2017 Aug 31

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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