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ACS Nano. 2010 Jul 27;4(7):4017-26. doi: 10.1021/nn100993t.

Fabrication and replication of arrays of single- or multicomponent nanostructures by replica molding and mechanical sectioning.

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  • 1Department of Chemistry and Chemical Biology, School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA.


This paper describes the fabrication of arrays of nanostructures (rings, crescents, counterfacing split rings, cylinders, coaxial cylinders, and other structures) by a four-step process: (i) molding an array of epoxy posts by soft lithography, (ii) depositing thin films on the posts, (iii) embedding the posts in epoxy, and (iv) sectioning in a plane parallel to the plane defined by the array of posts, into slabs, with an ultramicrotome ("nanoskiving"). This work demonstrates the combination of four capabilities: (i) formation of structures that are submicrometer in all dimensions; (ii) fabrication of 3D structures, and arrays of structures, with gradients of height; (iii) patterning of arrays containing two or more materials, including metals, semiconductors, oxides, and polymers; and (iv) generation of as many as 60 consecutive slabs bearing contiguous arrays of nanostructures. These arrays can be transferred to different substrates, and arrays of gold rings exhibit plasmonic resonances in the range of wavelengths spanning 2-5 microm.

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