American Chemical Society
Browse
nl5b01929_si_004.avi (7.94 MB)
Download file

Optical Epitaxial Growth of Gold Nanoparticle Arrays

Download (7.94 MB)
media
posted on 2015-09-09, 00:00 authored by Ningfeng Huang, Luis Javier Martínez, Eric Jaquay, Aiichiro Nakano, Michelle L. Povinelli
We use an optical analogue of epitaxial growth to assemble gold nanoparticles into 2D arrays. Particles are attracted to a growth template via optical forces and interact through optical binding. Competition between effects determines the final particle arrangements. We use a Monte Carlo model to design a template that favors growth of hexagonal particle arrays. We experimentally demonstrate growth of a highly stable array of 50 gold particles with 200 nm diameter, spaced by 1.1 μm.

History