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Buckling Polystyrene Beads with Light


Colloidal transformation based on simple physicochemical process has produced a wide variety of functional structures for different applications. But the lack of local selectivity of conventional transformation methods renders fabrication of nanodevices with desired optical properties challenging. Here, we use a laser beam to transform spherical polystyrene (PS) beads into bull’s eye-shaped nanopatterns or concentric nanorings, depending on the time of irradiation. The final morphologies are dependent on the size of PS beads and the dielectric nature of the substrates. The simulated near field features show that it is the selective hollowing of PS beads that results in collapsing and buckling of the shells. This understanding provides new route towards unconventional colloidal nanostructures and defects engineering in 2D photonic crystals that can be locally and selectively controlled by light.

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Publication details

The article was received on 07 May 2018, accepted on 29 Jul 2018 and first published on 31 Jul 2018

Article type: Paper
DOI: 10.1039/C8NR03697G
Citation: Nanoscale, 2018, Accepted Manuscript
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    Buckling Polystyrene Beads with Light

    S. Wang and T. Ding, Nanoscale, 2018, Accepted Manuscript , DOI: 10.1039/C8NR03697G

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