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Advanced Materials

Tunable Mesoporous Bragg Reflectors Based on Block-Copolymer Self-Assembly

Authors

  • Stefan Guldin,

    1. Department of Physics, University of Cambridge, J. J. Thomson Avenue, Cambridge CB3 0HE, UK
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  • Mathias Kolle,

    1. Department of Physics, University of Cambridge, J. J. Thomson Avenue, Cambridge CB3 0HE, UK
    Current affiliation:
    1. School of Engineering and Applied Sciences, Harvard University, 12 Oxford Street, Cambridge, MA 02138, USA
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  • Morgan Stefik,

    1. Department of Materials Science & Engineering, Cornell University, Ithaca, New York 14853, USA
    Current affiliation:
    1. Laboratory of Photonics and Interfaces, Institute of Physical Chemistry, Ecole Polytechnique Federale de Lausanne, 1015 Lausanne, Switzerland
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  • Richard Langford,

    1. Department of Physics, University of Cambridge, J. J. Thomson Avenue, Cambridge CB3 0HE, UK
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  • Dominik Eder,

    1. Department of Materials Science and Metallurgy, University of Cambridge, Pembroke Street, Cambridge CB2 3QZ, UK
    Current affiliation:
    1. Institut für Physikalische Chemie, Universität Münster, Corrensstrasse 28/30, 48149 Münster, Germany
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  • Ulrich Wiesner,

    1. Department of Materials Science & Engineering, Cornell University, Ithaca, New York 14853, USA
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  • Ullrich Steiner

    Corresponding author
    1. Department of Physics, University of Cambridge, J. J. Thomson Avenue, Cambridge CB3 0HE, UK
    • Department of Physics, University of Cambridge, J. J. Thomson Avenue, Cambridge CB3 0HE, UK.
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Abstract

Mesoporous Bragg reflectors are a promi­sing materials platform for photovoltaics, light emission, and sensing. A fast and versatile fabrication route that relies on the self-assembly of the block copolymer poly(isoprene-b-ethylene oxide) in combination with simple sol-gel chemistry is reported. The method allows extended control over porosity and pore size in the resulting inorganic material and results in high-quality optical elements.

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