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Max-Planck-Institut für Festkörperforschung Heisenbergstr. 3 70569 Stuttgart, Germany http://www.fkf.mpg.de
Contact Ms Claudia Daefler +49 711 6893094
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Max-Planck-Institut für Festkörperforschung

Auf molekularer Achse in die Nanomechanik

Forscher am Stuttgarter Max-Planck-Institut für Festkörperforschung nutzen Nanoröhrchen aus Kohlenstoff als Torsionsfedern

(PresseBox) (Stuttgart, )
In den vergangenen Jahrzehnten sind nach elektronischen auch mechanische Bauteile auf immer kleinere Dimensionen geschrumpft: Mittels lithografischer Verfahren aus der Mikroelektronik ließen sich winzige mechanische Komponenten und schließlich mikroelektromechanische Systeme herstellen. Einen neuen Grenzstein in Sachen Miniaturisierung haben jetzt Wissenschaftler am Stuttgarter Max-Planck-Institut für Festkörperforschung gesetzt. Ihnen gelang es, mikroskopisch kleine "Paddel" aus Metall schwenkbar auf Kohlenstoff-Nanoröhrchen von nur eineinhalb millionstel Millimeter Durchmesser zu lagern (Science, 2. September 2005).

Abb. 1: Schema eines auf einem einwandigen Kohlenstoff-Nanoröhrchen aufgehängten beweglichen Metallblocks. Wird der Metallblock gedreht, verformt sich das Nanoröhrchen und funktioniert als Torsionsfeder.

Bild: Max-Planck-Institut für Festkörperforschung

Kohlenstoff-Nanoröhrchen sind langgestreckte Moleküle
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