Growth of gold nanoparticle films driven by the coalescence of particle-stabilized emulsion drops

B P Binks; J H Clint; P D I Fletcher; T J G Lees; P Taylor

doi:10.1021/la052752i

Growth of gold nanoparticle films driven by the coalescence of particle-stabilized emulsion drops

Langmuir. 2006 Apr 25;22(9):4100-3. doi: 10.1021/la052752i.

Authors

B P Binks¹, J H Clint, P D I Fletcher, T J G Lees, P Taylor

Affiliation

¹ Surfactant & Colloid Group, Department of Chemistry, University of Hull, Hull HU6 7RX, UK.

PMID: 16618150
DOI: 10.1021/la052752i

Abstract

We have investigated the mechanism of the spontaneous growth of a gold nanoparticle film on a container wall when an aqueous dispersion of gold nanoparticles is shaken with an oil phase containing octadecylamine, as first described by Mayya and Sastry (Mayya, K. S.; Sastry, M. Langmuir 1999, 15, 1902.). Experimental evidence is described, which shows that the film growth is driven by the coalescence of particle-coated emulsion drops with the flat oil-water interface separating the oil and water phases.