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Electrochemical synthesis of mesoporous gold films toward mesospace-stimulated optical properties

Author

Listed:
  • Cuiling Li

    (World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS))

  • Ömer Dag

    (Bilkent University)

  • Thang Duy Dao

    (World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS)
    PRESTO and CREST, Japan Science and Technology Agency (JST)
    Graduate School of Materials Science, Nara Institute of Science and Technology)

  • Tadaaki Nagao

    (World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS)
    PRESTO and CREST, Japan Science and Technology Agency (JST))

  • Yasuhiro Sakamoto

    (PRESTO and CREST, Japan Science and Technology Agency (JST)
    Graduate School of Science, Osaka University)

  • Tatsuo Kimura

    (Advanced Manufacturing Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Shimoshidami, Moriyama, Nagoya 463-8560, Japan)

  • Osamu Terasaki

    (Graduate School of EEWS (BK21Plus), KAIST
    EXSELENT, Stockholm University)

  • Yusuke Yamauchi

    (World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS)
    Faculty of Science and Engineering, Waseda University
    3-4-1 Okubo)

Abstract

Mesoporous gold (Au) films with tunable pores are expected to provide fascinating optical properties stimulated by the mesospaces, but they have not been realized yet because of the difficulty of controlling the Au crystal growth. Here, we report a reliable soft-templating method to fabricate mesoporous Au films using stable micelles of diblock copolymers, with electrochemical deposition advantageous for precise control of Au crystal growth. Strong field enhancement takes place around the center of the uniform mesopores as well as on the walls between the pores, leading to the enhanced light scattering as well as surface-enhanced Raman scattering (SERS), which is understandable, for example, from Babinet principles applied for the reverse system of nanoparticle ensembles.

Suggested Citation

  • Cuiling Li & Ömer Dag & Thang Duy Dao & Tadaaki Nagao & Yasuhiro Sakamoto & Tatsuo Kimura & Osamu Terasaki & Yusuke Yamauchi, 2015. "Electrochemical synthesis of mesoporous gold films toward mesospace-stimulated optical properties," Nature Communications, Nature, vol. 6(1), pages 1-8, May.
    • Handle: RePEc:nat:natcom:v:6:y:2015:i:1:d:10.1038_ncomms7608
    DOI: 10.1038/ncomms7608
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    Cited by:

    1. Olga Guselnikova & Andrii Trelin & Yunqing Kang & Pavel Postnikov & Makoto Kobashi & Asuka Suzuki & Lok Kumar Shrestha & Joel Henzie & Yusuke Yamauchi, 2024. "Pretreatment-free SERS sensing of microplastics using a self-attention-based neural network on hierarchically porous Ag foams," Nature Communications, Nature, vol. 15(1), pages 1-15, December.

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