Journal
ACS NANO
Volume 12, Issue 8, Pages 7529-7537Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.8b02932
Keywords
nanoparticles; arrays; electrophoretic deposition; plasmonic; polarization; scale-up
Categories
Funding
- ARC [LE110100161, LF100100117, CP110200319, CE170100026]
- Australian Research Council [LE110100161] Funding Source: Australian Research Council
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A major goal of nanotechnology is the assembly of nanoscale building blocks into functional optical, electrical, or chemical devices. Many of these applications depend on an ability to optically or electrically address single nanoparticles. However, positioning large numbers of single nanocrystals with nanometer precision on a substrate for integration into solid-state devices remains a fundamental roadblock. Here, we report fast, scalable assembly of thousands of single nanoparticles using electrophoretic deposition. We demonstrate that gold nanospheres down to 30 nm in size and gold nanorods <100 nm in length can be assembled into predefined patterns on transparent conductive substrates within a few seconds. We find that rod orientation can be preserved during deposition. As proof of high fidelity scale-up, we have created centimeter scale patterns comprising more than 1 million gold nanorods.
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