Advanced Materials

Cover image for Vol. 27 Issue 16

24_32/2012Nanosieves: Use of a Columnar Metal Thin Film as a Nanosieve with Sub-10 nm Pores (Adv. Mater. 32/2012)

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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