Advanced Materials

Large Scale Monodisperse Hexagonal Arrays of Superparamagnetic Iron Oxides Nanodots: A Facile Block Copolymer Inclusion Method

Authors

  • Tandra Ghoshal,

    1. Materials Research Group, Department of Chemistry and Tyndall National Institute, University College Cork, Cork, Ireland
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  • Tuhin Maity,

    1. Micropower-Nanomagnetics group, Tyndall National Institute, Cork, Ireland
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  • Jeffrey F. Godsell,

    1. Micropower-Nanomagnetics group, Tyndall National Institute, Cork, Ireland
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  • Saibal Roy,

    1. Micropower-Nanomagnetics group, Tyndall National Institute, Cork, Ireland
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  • Michael A. Morris

    Corresponding author
    1. Materials Research Group, Department of Chemistry and Tyndall, National Institute, University College Cork, Cork, Ireland, Centre for Research on Adaptive, Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin, Ireland, Tel: + 353 21 461 948, Fax: ++353 21 474097
    • Materials Research Group, Department of Chemistry and Tyndall, National Institute, University College Cork, Cork, Ireland, Centre for Research on Adaptive, Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin, Ireland, Tel: + 353 21 461 948, Fax: ++353 21 474097.
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Abstract

Highly dense hexagonal ordered arrays of superparamagnetic iron oxides nanodots are fabricated by a simple and cost-effective route. Spectroscopic, microscopic and magnetic measurements show that the nanodots have uniform size, shape and their placement mimics the original self-assembled block copolymer pattern. The nanodots show good thermal stability and strong adherence to the substrate surface, making them useful for practical device applications.

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