Digital laser printing of metal/metal-oxide nano-composites with tunable electrical properties

M. Zenou, A. Sa'Ar, Z. Kotler

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

We study the electrical properties of aluminum structures printed by the laser forward transfer of molten, femtoliter droplets in air. The resulting printed material is an aluminum/aluminum-oxide nano-composite. By controlling the printing conditions, and thereby the droplet volume, its jetting velocity and duration, it is possible to tune the electrical resistivity to a large extent. The material resistivity depends on the degree of oxidation which takes place during jetting and on the formation of electrical contact points as molten droplets impact the substrate. Evidence for these processes is provided by FIB cross sections of printed structures.

Original languageAmerican English
Article number015203
JournalNanotechnology
Volume27
Issue number1
DOIs
StatePublished - 25 Nov 2015

Bibliographical note

Publisher Copyright:
© 2016 IOP Publishing Ltd.

Keywords

  • aluminum
  • electrical transport
  • functional printing
  • laser transfer
  • nano-structures
  • plastic electronics

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