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

Fingerprint

Nanowires
nanowires
plastics
Plastics
Fabrication
Electrodes
fabrication
electrodes
Lasers
Substrates
lasers
Laser beams
laser beams
Pulsed lasers
pulsed lasers
conduction

All Science Journal Classification (ASJC) codes

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

Cite this

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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.",
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Laser-direct fabrication of invisible Ag nanowire electrode pattern on flexible plastic substrate. / Oh, Harim; Lee, Myeongkyu.

In: Thin Solid Films, Vol. 636, 31.08.2017, p. 375-383.

Research output: Contribution to journalArticle

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AU - Lee, Myeongkyu

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AB - 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.

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