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Originally published in Science Express on 20 July 2006
Science 11 August 2006:
Vol. 313. no. 5788, pp. 817 - 820
DOI: 10.1126/science.1130101
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Reports

Hexagonal Mesoporous Germanium

Gerasimos S. Armatas and Mercouri G. Kanatzidis*

The blending of mesoporosity with the properties of semiconductors promises new types of multifunctional nanomaterials. It would be particularly interesting to combine the shape selectivity of a mesoporous oxide with the electronic and photonic characteristics of a useful semiconductor. We demonstrated the synthesis of a mesoporous germanium semiconductor using liquid-crystals-templated chemistry. The template removal was achieved by a two-step ion-exchange thermal procedure. This semiconductive mesoporous form of germanium possesses hexagonal pore ordering with very high surface area and exhibits strongly size-dependent optical properties as well as photoluminescence.

Department of Chemistry, Michigan State University, East Lansing, MI 48824, USA.

* To whom correspondence should be addressed. E-mail: kanatzid{at}cem.msu.edu

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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
The Problem with Determining Atomic Structure at the Nanoscale.
S. J. L. Billinge and I. Levin (2007)
Science 316, 561-565
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Science. ISSN 0036-8075 (print), 1095-9203 (online)