Triggering the sintering of silver nanoparticles at room temperature

Shlomo Magdassi*, Michael Grouchko, Oleg Berezin, Alexander Kamyshny

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

458 Scopus citations


A new approach to achieve coalescence and sintering of metallic nanoparticles at room temperature is presented. It was discovered that silver nanoparticles behave as soft particles when they come into contact with oppositely charged polyelectrolytes and undergo a spontaneous coalescence process, even without heating. Utilizing this finding in printing conductive patterns, which are composed of silver nanoparticles, enables achieving high conductivities even at room temperature. Due to the sintering of nanoparticles at room temperature, the formation of conductive patterns on plastic substrates and even on paper is made possible. The resulting high conductivity, 20% of that for bulk silver, enabled fabrication of various devices as demonstrated by inkjet printing of a plastic electroluminescent device.

Original languageAmerican English
Pages (from-to)1943-1948
Number of pages6
JournalACS Nano
Issue number4
StatePublished - 27 Apr 2010


  • Coalescence
  • Plastic electronics
  • Silver nanoparticles
  • Sintering


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