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Prominent electrochromism through vacancy-order melting in a complex oxide

Author

Listed:
  • J. Seidel

    (Lawrence Berkeley National Laboratory
    University of California
    School of Materials Science and Engineering, University of New South Wales)

  • W. Luo

    (Vanderbilt University
    Oak Ridge National Laboratory)

  • S.J. Suresha

    (National Center for Electron Microscopy, Lawrence Berkeley National Laboratory)

  • P.-K. Nguyen

    (Rutgers University)

  • A.S. Lee

    (Department of Materials Science and Engineering,University of California)

  • S.-Y. Kim

    (Department of Materials Science and Engineering,University of California)

  • C.-H. Yang

    (University of California
    Deparment of Physics, and Institute for the NanoCentury, Korea Advanced Institute of Science and Technology (KAIST))

  • S.J. Pennycook

    (Vanderbilt University
    Oak Ridge National Laboratory)

  • S.T. Pantelides

    (Vanderbilt University
    Oak Ridge National Laboratory)

  • J.F. Scott

    (University of Cambridge)

  • R. Ramesh

    (Lawrence Berkeley National Laboratory
    University of California
    Department of Materials Science and Engineering,University of California)

Abstract

Electrochromes are materials that have the ability to reversibly change from one colour state to another with the application of an electric field. Electrochromic colouration efficiency is typically large in organic materials that are not very stable chemically. Here we show that inorganic Bi0.9Ca0.1FeO3−0.05 thin films exhibit a prominent electrochromic effect arising from an intrinsic mechanism due to the melting of oxygen-vacancy ordering and the associated redistribution of carriers. We use a combination of optical characterization techniques in conjunction with high-resolution transmission electron microscopy and first-principles theory. The absorption change and colouration efficiency at the band edge (blue-cyan region) are 4.8×106 m−1 and 190 cm2 C−1, respectively, which are the highest reported values for inorganic electrochromes, even exceeding values of some organic materials.

Suggested Citation

  • J. Seidel & W. Luo & S.J. Suresha & P.-K. Nguyen & A.S. Lee & S.-Y. Kim & C.-H. Yang & S.J. Pennycook & S.T. Pantelides & J.F. Scott & R. Ramesh, 2012. "Prominent electrochromism through vacancy-order melting in a complex oxide," Nature Communications, Nature, vol. 3(1), pages 1-6, January.
    • Handle: RePEc:nat:natcom:v:3:y:2012:i:1:d:10.1038_ncomms1799
    DOI: 10.1038/ncomms1799
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    Cited by:

    1. Ji Soo Lim & Ho-Hyun Nahm & Marco Campanini & Jounghee Lee & Yong-Jin Kim & Heung-Sik Park & Jeonghun Suh & Jun Jung & Yongsoo Yang & Tae Yeong Koo & Marta D. Rossell & Yong-Hyun Kim & Chan-Ho Yang, 2022. "Critical ionic transport across an oxygen-vacancy ordering transition," Nature Communications, Nature, vol. 13(1), pages 1-10, December.

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