Nanosieves: Use of a Columnar Metal Thin Film as a Nanosieve with Sub-10 nm Pores (Adv. Mater. 32/2012)

Authors

  • Dong-Hoon Choi,

    1. Department of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, Republic of Korea
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  • Yong Duk Han,

    1. Department of Molecular Science and Technology, Ajou University, San 5, Woncheon-dong, Yeongtong-gu, Suwon, 443-749, Republic of Korea
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  • Byung-Kee Lee,

    1. Department of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, Republic of Korea
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  • Seon-Jin Choi,

    1. Department of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, Republic of Korea
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  • Hyun C. Yoon,

    1. Department of Molecular Science and Technology, Ajou University, San 5, Woncheon-dong, Yeongtong-gu, Suwon, 443-749, Republic of Korea
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  • Dae-Sik Lee,

    Corresponding author
    1. IT Convergence Components Laboratory, Electronics and Telecommunications Research Institute (ETRI), 138 Gajeongno, Yuseong-gu, Daejeon, 305-700, Republic of Korea
    • IT Convergence Components Laboratory, Electronics and Telecommunications Research Institute (ETRI), 138 Gajeongno, Yuseong-gu, Daejeon, 305-700, Republic of Korea.
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  • Jun-Bo Yoon

    Corresponding author
    1. Department of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, Republic of Korea
    • Department of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, Republic of Korea
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Abstract

original image

On page 4408, J.-B. Yoon, D.-S. Lee, and co-workers report the first use of a columnar thin film as a nanosieve. The image illustrates a columnar-structured nanosieve (nanoporous membrane) prepared by physical vapor deposition (PVD). Since a thin film formed by PVD has vertically-grown columnar grains, the film naturally has numerous straight-opened nanopores. The generally sputtered film can separate molecules of different sizes.

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