FOR 522:  Architecture of Nano- and Microdimensional Building Blocks

• Subject Area: Physics ; Biology
• Term: from 2003 to 2009
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 5470540

Future applications in nanomechanics, sensorics, photonics and electronics require a novel kind of architecture von micro- and nanostructures. These structures will fully use the three-dimensional space, first as single elements, later also as networks. New degrees of design freedom become possible with regard to strain management and interconnectivity. This approach is followed for the fabrication of nanowires and microcolumns, spirals, scrolls, cylinders or similar structures. Their novel functionality makes them elementary building blocks for the above mentioned applications.The structures envisioned by us are constructed in free space. They will be fabricated with minimum use of patterning technology, employing the principles of self-assembly and directed self-assembly. This bottum-up approach allows us to create novel structures which cannot be created by top-down technology, e.g. spirals and structures with extreme aspect ratio.Our structures are fundamentally different from nanoparticles, clusters, mesoscopic inhomogeneities, nanostructures embedded in a planar matrix (quantum dots) or a liquid (colloidal quantum dots) which are currently under intense investigation. The complex, three-dimensional design of our building blocks can contain curvatures and leads to properties which cannot be achieved in any other way. The size scale of the structures depends on the physical properties such as electron or photon confinement or phase stability.

• DFG Programme: Research Units

Projects

• 3D ion beam analysis for morphological and elementary characterisation of nano- and micro-dimensional building blocks and ion beam micro-machining (Applicant Butz, Tilman )
• A III B V-Nanodrähte und -Nanorollen (Applicant Gottschalch, Volker )
• Herleitung effektiver Theorien für atomistisch dünne Röhren und Schichten (Applicant Müller, Stefan )
• Konstruktive Darstellung von dreidimensionalen periodischen Nanostrukturen durch Ionenstrahl-gestützte Abscheidung (Applicant Rauschenbach, Bernd )
• Koordinatorprojekt (Applicant Grundmann, Marius )
• Laterales optisches Konfinement mikroskopischer Resonatoren (Applicant Gottschalch, Volker )
• One-dimensional heterostructures and nano-forests (Applicant Grundmann, Marius )
• Optische Resonanzen in Mikro- und Nanozylindern mit Bragg-Reflektoren (Applicant Rheinländer, Bernd )
• Substratgebundene Nanostrukturen durch Diffraktionsmaskenprojektions-Laserablation (Applicant Höche, Thomas )
• Synthese und Charakterisierung eindimensionaler Ferroelektrika mit Perowskitstruktur (Applicant Böttcher, Rolf )
• Synthese und Charakterisierung von thermoelektrischen Multischicht-Nanostäben von Pb-Bi-(S, Se, Te)-Verbindungen (Applicants Bente, Klaus ;  Nielsch, Kornelius )
• Zentralprojekt (Applicant Grundmann, Marius )
• Zylindrisch-lamellare Mikrogefügeübergänge und Struktur-Eigenschaftsbeziehungen von Kylindrit, FeSn4Pb3Sb2S14 (Applicant Bente, Klaus )

• Spokesperson: Professor Dr. Marius Grundmann