Fabrication, characterization, and printing of conductive ink based on multi core-shell nanoparticles synthesized by RAPET

Evgeny Butovsky, Ilana Perelshtein, Ifat Nissan, Aharon Gedanken

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

In the current research, conductive patterns are deposited on different substrates by direct inkjet printing of conductive inks based on metal@carbon and bimetal@carbon core-shell nanoparticles synthesized by the RAPET (reaction under autogenic pressure at elevated temperatures) technique. Various co-solvents and additives are examined for production of stable conductive ink. The morphology of the deposited layers is characterized by optical and scanning electron microscopy measurements. The stability of the prepared inks is examined by dynamic light scattering measurements. The electrical resistivity is measured by a four-point probe system and calculated using the geometric dimensions. The results obtained are very promising and indicate that the conductivity of the deposited layers is close to that of bulk metals and higher than most results published so far. Moreover, the importance and advantages of the protective carbon layer that prevents metal oxidation is demonstrated. Metal@carbon and bimetal@carbon core-shell nanoparticles are synthesized by the RAPET (reaction under autogenic pressure at elevated temperatures) technique. Stable inks are prepared by using various co-solvents and additives. The conductive layers are deposited by inkjet printing on different substrates and high conductivity is obtained.

Original languageEnglish
Pages (from-to)5794-5799
Number of pages6
JournalAdvanced Functional Materials
Volume23
Issue number46
DOIs
StatePublished - 10 Dec 2013

Keywords

  • RAPET
  • conductive ink
  • core-shell
  • inkjet printing

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