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Colossal permittivity materials

Doping for superior dielectrics

Nature Materials volume 12, pages 782–783 (2013)Cite this article

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The search for materials with colossal permittivity for use in capacitors has been met with limited success. A newly discovered co-doped titanium oxide material has an extremely high permittivity and negligible dielectric losses, and is likely to enable further scaling in electronic and energy-storage devices.

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Figure 1: Ambipolar co-doping in a rutile structure where electron donors (Nb5+) create diamond-like complexes; the oxygen vacancies associated with the acceptors (In3+) result in triangular complexes2.

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Authors and Affiliations

  1. Christopher C. Homes is at the Condensed Matter Physics & Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USA,

    Christopher C. Homes

  2. and the Department of Chemistry and Biochemistry, Thomas Vogt is at the NanoCenter, University of South Carolina, Columbia, South Carolina 29208, USA,

    Thomas Vogt

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  1. Christopher C. Homes
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  2. Thomas Vogt
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Correspondence to Christopher C. Homes or Thomas Vogt.

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Homes, C., Vogt, T. Doping for superior dielectrics. Nature Mater 12, 782–783 (2013). https://doi.org/10.1038/nmat3744

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