NanoPen: dynamic, low-power, and light-actuated patterning of nanoparticles

Jamshidi, A., Neale, S. , Yu, K., Pauzauskie, P.J., Schuck, P.J., Valley, J.K., Hsu, H., Ohta, A.T. and Wu, M. (2009) NanoPen: dynamic, low-power, and light-actuated patterning of nanoparticles. Nano Letters, 9(8), pp. 2921-2925. (doi: 10.1021/nl901239a)

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Publisher's URL: http://dx.doi.org/10.1021/nl901239a

Abstract

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/cm2 (using a commercial projector) within seconds. Various arbitrary nanoparticle patterns and arrays (including a 10 × 10 array covering a 0.025 mm2 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 107 and picomolar concentration sensitivities.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Neale, Professor Steven
Authors: Jamshidi, A., Neale, S., Yu, K., Pauzauskie, P.J., Schuck, P.J., Valley, J.K., Hsu, H., Ohta, A.T., and Wu, M.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:Nano Letters
Publisher:American Chemical Society
ISSN:1530-6984
ISSN (Online):1530-6992

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