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Published Online July 20, 2006
Science DOI: 10.1126/science.1130101

Reports

Submitted on May 17, 2006
Accepted on July 7, 2006

Hexagonal Mesoporous Germanium

Gerasimos S. Armatas 1 and Mercouri G. Kanatzidis 1*

1 Department of Chemistry, Michigan State University, East Lansing, MI 48824, U.S.A.

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

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 demonstrate the synthesis of 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.


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)