Microconductors on polymer by nanoink printing and pulsed laser curing

Jaewon Chung, Seunghwan Ko, Costas P. Grigoropoulos, Nicole R. Bieri, Cedric Dockendorf, Dimos Poulikakos

Research output: Contribution to conferencePaper

1 Citation (Scopus)

Abstract

In this study, pulsed laser based curing of a printed nanoink (nanoparticle ink) combined with moderate and controlled substrate heating was investigated to create microconductors at low enough temperatures appropriate for polymeric substrates. The present work relies on (1) melting temperature depression of nanoparticles smaller than a critical size, (2) DOD (drop on demand) jettability of nanoparticle ink and (3) small heat affected zone of pulsed laser heating. In the experiment, gold nanoparticles of 3-7nm diameter dissolved in toluene solvent was used as ink. This nanoink was printed on a polymeric substrate which was heated to evaporate the solvent during or after printing. The overall morphology of the gold microline was determined during the printing process and was controlled by changing the substrate temperature during jetting. By employing a micro-second pulsed laser, the nanoparticles were melted and coalesced at a low temperature to form a conductive microline which has 4-5 times higher resistivity than the bulk value without damaging the temperature sensitive polymeric substrate.

Original languageEnglish
Pages597-605
Number of pages9
Publication statusPublished - 2004
Externally publishedYes
EventProceedings of the ASME Heat Transfer/Fluids Engineering Summer Conference 2004, HT/FED 2004 - Charlotte, NC, United States
Duration: 2004 Jul 112004 Jul 15

Other

OtherProceedings of the ASME Heat Transfer/Fluids Engineering Summer Conference 2004, HT/FED 2004
CountryUnited States
CityCharlotte, NC
Period04/7/1104/7/15

Keywords

  • Drop-on-demand jetting
  • Laser curing
  • Nanoparticle

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Chung, J., Ko, S., Grigoropoulos, C. P., Bieri, N. R., Dockendorf, C., & Poulikakos, D. (2004). Microconductors on polymer by nanoink printing and pulsed laser curing. 597-605. Paper presented at Proceedings of the ASME Heat Transfer/Fluids Engineering Summer Conference 2004, HT/FED 2004, Charlotte, NC, United States.