NanoPen: Dynamic, Low-Power, and Light-Actuated Patterning of Nanoparticles

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We introduce NanoPen, a novel technique for low optical power intensity, flexible, real-time reconfigurable, and large-scale light-actuated patterning of single or multiple nanoparticles, such as metallic spherical nanocrystals, and one-dimensional nanostructures, such as carbon nanotubes. NanoPen is capable of dynamically patterning nanoparticles over an area of thousands of square micrometers with light intensities <10 W/cm(2) (using a commercial projector) within seconds. Various arbitrary nanoparticle patterns and arrays (including a 10 x 10 array covering a 0.025 mm(2) area) are demonstrated using this capability. One application of NanoPen is presented through the creation of surface-enhanced Raman spectroscopy hot-spots by patterning gold nanoparticles of 90 nm diameter with enhancement factors exceeding 10(7) and picomolar concentration sensitivities.
Publisher
AMER CHEMICAL SOC
Issue Date
2009-08
Language
English
Article Type
Article
Keywords

DIP-PEN NANOLITHOGRAPHY; OPTOELECTRONIC TWEEZERS; SEMICONDUCTOR; MANIPULATION; ARRAYS; LITHOGRAPHY; INTEGRATION; SILICON; FUSION

Citation

NANO LETTERS, v.9, no.8, pp.2921 - 2925

ISSN
1530-6984
DOI
10.1021/nl901239a
URI
http://hdl.handle.net/10203/93374
Appears in Collection
EE-Journal Papers(저널논문)
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