On-Demand Control of Optoelectronic Coupling in Gold Nanoparticle Arrays (pages 1941–1945)
F. Seker, P. R. L. Malenfant, M. Larsen, A. Alizadeh, K. Conway, A. M. Kulkarni, G. Goddard and R. Garaas
Article first published online: 4 AUG 2005 | DOI: 10.1002/adma.200400734
Dynamic control of interparticle coupling within a single material comprising gold nanoparticles and poly(N-isopropylacrylamide) has been developed. Core/shell particles with defined shell thicknesses are the building blocks for preparing films of sufficiently high gold nanoparticle density necessary for achieving reversible switching of several optical properties simultaneously: color, transparency, and metallic luster. The polymer-shell architecture has a strong effect on particle and film stability.