Effect of channel confinement on the coarsening kinetics of nanoparticles deposited on semicrystalline polymer templates

Mariela J. Pavan, Roy Shenhar

Research output: Contribution to journalArticlepeer-review

Abstract

Dodecanethiol-capped gold nanoparticles (NPs) deposited onto a poly(ethylene glycol) substrate quickly coarsen over a timescale of days when stored under ambient conditions. The NP coarsening was studied at different surface coverages and temperatures. The coarsening of NPs depended on their location on the film; NPs located inside the channels coarsened in a different fashion than NPs deposited on the plateaus. Size distributions studied by image analysis and comparison to theoretical distribution functions shed light on the coarsening mechanism in each case, revealing the role of dimensionality.

Original languageEnglish
Pages (from-to)1015-1023
Number of pages9
JournalChemPlusChem
Volume78
Issue number9
DOIs
StatePublished - 1 Sep 2013
Externally publishedYes

Keywords

  • coalescence
  • coarsening
  • materials science
  • nanoparticles
  • surface chemistry

ASJC Scopus subject areas

  • General Chemistry

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