Seeded-Growth Approach to Selective Metallization of Microcontact-Printed Patterns

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We report on a versatile nanocolloidal route to obtain large-scale conducting metal microstructures on a silicon oxide substrate. By using microcontact printing of an aminosilane, we create functionalized regions on the silicon oxide surface onto which gold nanoparticles selectively adhere. By using an established electroless, seeded-growth process, the individual, isolated gold nanocrystals are enlarged past the percolation threshold to form conducting metal structures. Quantitative characterization of metal coverage, thickness, and roughness has been performed with scanning electron microscopy and spectroscopic ellipsometry.
Original languageEnglish
Pages (from-to)5584-5587
Number of pages4
Issue number13
Publication statusPublished - 2006


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