期刊
NANO LETTERS
卷 15, 期 9, 页码 5841-5845出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.5b01929
关键词
Optical trapping; gold nanoparticles; self-assembly; photonic crystal; optical binding; epitaxial growth
类别
资金
- Army Research Office PECASE Award [56801-MS-PCS]
- University of Southern California Center for High Performance Computing and Computation
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 mu m.
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