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Issue 23, 2018
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Laser patterning of transparent polymers assisted by plasmon excitation

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Abstract

Plasmon-assisted lithography of thin transparent polymer films, based on polymer mass-redistribution under plasmon excitation, is presented. The plasmon-supported structures were prepared by thermal annealing of thin Ag films sputtered on glass or glass/graphene substrates. Thin films of polymethylmethacrylate, polystyrene and polylactic acid were then spin-coated on the created plasmon-supported structures. Subsequent laser beam writing, at the wavelength corresponding to the position of plasmon absorption, leads to mass redistribution and patterning of the thin polymer films. The prepared structures were characterized using UV-Vis spectroscopy and confocal and AFM microscopy. The shape of the prepared structures was found to be strongly dependent on the substrate type. The mechanism leading to polymer patterning was examined and attributed to the plasmon-heating. The proposed method makes it possible to create different patterns in polymer films without the need for wet technological stages, powerful light sources or a change in the polymer optical properties.

Graphical abstract: Laser patterning of transparent polymers assisted by plasmon excitation

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Publication details

The article was received on 01 Mar 2018, accepted on 20 May 2018 and first published on 21 May 2018


Article type: Paper
DOI: 10.1039/C8SM00418H
Citation: Soft Matter, 2018,14, 4860-4865
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    Laser patterning of transparent polymers assisted by plasmon excitation

    R. Elashnikov, A. Trelin, J. Otta, P. Fitl, D. Mares, V. Jerabek, V. Svorcik and O. Lyutakov, Soft Matter, 2018, 14, 4860
    DOI: 10.1039/C8SM00418H

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