Advertisement

Nanofabrication: Curving Nanostructures Using Extrinsic Stress (Adv. Mater. 21/2010)

Authors

  • Jeong-Hyun Cho,

    1. Department of Chemical and Biomolecular Engineering Johns Hopkins University Baltimore, MD 21218 (USA)
    Search for more papers by this author
  • Teena James,

    1. Department of Chemical and Biomolecular Engineering Johns Hopkins University Baltimore, MD 21218 (USA)
    Search for more papers by this author
  • David H. Gracias

    Corresponding author
    1. Department of Chemistry Johns Hopkins University Baltimore, MD 21218 (USA)
    2. Department of Chemical and Biomolecular Engineering Johns Hopkins University Baltimore, MD 21218 (USA)
    • Department of Chemistry Johns Hopkins University Baltimore, MD 21218 (USA).
    Search for more papers by this author

Abstract

original image

A simple way to fabricate simultaneously patterned and curved nanostructures with radii as small as 20 nm is demonstrated on p. 2320 by David Gracias and co-workers. Curved nanostructures with both homogeneous (nanorings, nanotubes) and variable (nanospirals) radii of curvature spontaneously assembled when grain coalescence was induced in electron-beam-patterned thin-film bilayers. In addition, large stresses could be induced after deposition and patterning and only when required, thereby suggesting an extrinsic stress-based strategy to trigger assembly on demand.

Ancillary