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Nature 441, 1055-1056 (29 June 2006) | doi:10.1038/4411055a; Published online 28 June 2006
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Materials science: Germanium takes holey orders
Andreas Stein1
Abstract
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.
- Andreas Stein is in the Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, USA.
Email: stein@chem.umn.edu
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RESEARCH
Supplementary InformationNature Materials Letter (01 Mar 2009)
Pores in thin films tend to lie in the plane of the substrate, which makes it impractical for applications where diffusion into the pores is necessary. Nanometre-scale epitaxy on a patterned substrate is now used to form vertically oriented pores in honeycomb-structured films. Pores in thin films tend to lie in the plane of the substrate, which makes it impractical for applications where diffusion into the pores is necessary. Nanometre-scale epitaxy on a patterned substrate is now used to form vertically oriented pores in honeycomb-structured films.Nature Materials Letter (01 Sep 2008)
Mesostructured germanium with cubic pore symmetryNature Letters to Editor (29 Jun 2006)
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