Generation of plasmonic Au nanostructures in the visible wavelength using two-dimensional parallel dip-pen nanolithography.
نویسندگان
چکیده
The fabrication and characterization of over millimeter (mm)-scale Au plasmonic structures are reported. Fishnet structures of Au are fabricated by the "bottom-up (direct deposition of alkanethiol)" and "top-down (wet-etching of Au)" combined approach using massively parallel dip-pen nanolithography (DPN). An array of two-dimensional (2D) parallel 55,000 pens was used for the DPN writing of 1-octadecanethiol (ODT) on an Au film in an area of 10 mm × 10 mm. The plasmonic resonance of the over millimeter-scale Au fishnet structures is shown at the visible region around 500 nm, which is measured by ellipsometrical experiments and theoretical finite-difference time-domain (FDTD) calculation. It was demonstrated that massive metal plasmonic structures can be conveniently obtained by using DPN, complementary with both e-beam lithography and nanoimprint lithography.
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عنوان ژورنال:
- Nanoscale
دوره 6 14 شماره
صفحات -
تاریخ انتشار 2014