Access

News and Views

Nature 441, 1055-1056 (29 June 2006) | doi:10.1038/4411055a; Published online 28 June 2006

Open Innovation Challenges

naturejobs

Materials science: Germanium takes holey orders

Andreas Stein1

Top

Soap-like molecules serve as a scaffold for remarkably well-ordered, porous germanium skeletons. The nanometre-sized features of these semiconductor frameworks confer unique optical and electronic properties.

As semiconductor materials are shrunk to the nanoscale, their physical properties begin to alter: colours change, melting points decrease, electron energy bands turn into discrete levels, and reactive surface areas become proportionately larger as particle size decreases1. This applies not only to discrete semiconductor particles, but also for extended 'mesoporous' framework structures of nanometre scale.

  1. Andreas Stein is in the Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, USA.
    Email: stein@chem.umn.edu