Transfer printing of sub-100 nm nanoparticles by soft lithography with solvent mediation


Aline Cerf, Christophe Vieu


Colloids and Surfaces A: Physicochemical and Engineering Aspects

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In this paper we present an alternative approach to transfer-print controlled arrays of sub-100 nm gold nanoparticles onto a substrate with high placement accuracy. First, the assembly of gold nanoparticles is achieved on a topologically nanopatterned polydimethylsiloxane stamp through a convective and capillary assembly technique. Second, the dry particles assembly is subsequently printed from the plate onto plane substrates by contact through a thin film of liquid. We demonstrate that microcontact printing can be performed with solvent mediation for a high precision transfer of sub-100 nm individual particles and we discuss the most appropriate solvent. The transferred particles preserve their organization and physical properties.

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Date added: 2012-08-09 22:06:59 | Last time updated: 2012-08-09 20:06:59 | Viewed: 820 times

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