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2010 P: Science and technology of nanotubes, nanowires and graphene

pdf Program 2010 P 803.86 Kb

The successful application of nanomaterials for nanotechnology faces four main challenges: materials preparation, characterization, device fabrication and integration. This symposium will cover the considerable progress in the design, manufacturing and characterisation of nanotubes/nanowires/graphene, and the new developments that are leading to possible commercial applications of these materials in the near future.

The physical properties of nanomaterials strongly depend on their atomic-scale structure, size and chemistry but also on their organisation and aggregation. To fully exploit the technological advantages offered by these self-assembled molecular structures it is essential to acquire the ability to select, control and manipulate individual or aggregated nanomaterials. There has been much progress in the synthesis and characterization of nanostructures such as nanotubes, nano-crystals, atomic wires, organic and biological nanostructures, molecular junctions and graphene layers. However, immense challenges remain in understanding their properties and interactions with external probes to realize their tremendous potential for applications. Some of the frontiers in nanoscience include molecular electronics, nano-scale opto-electronic devices, nanomechanics, light harvesting and emitting nanostructures. Nanotubes, nanowires and graphene dominate the pursuit for materials for future nanotechnology applications.

Carbon nanotubes are a unique platform for many fundamental studies of quantum physics in low-dimensional systems, and several unexpected physical phenomena have been discovered. Recent breakthroughs in the high-yield, structure-selective manufacturing and techniques for separating metallic and semiconducting nanotubes promise to make commercial applications of this material real. Large efforts in the area of chemical modification and manipulation have allowed the design and fabrication of well-controlled architectures. Substantial progress has also been made in fabricating electronic devices, sensors, field-emission displays, and nano-electro-mechanical systems using nanotubes and nanotube-based mesostructures.

One-dimensional nanowires are also receiving increasing attention because of their potential applications in electronics and photonics. Device performance typically depends on the material structure and crystallinity, but assembly is also a critical issue for applications. Fabrication of several types of one dimensional nanostructures, such as nanowires, nanorods, nanosaws and nanoribbons, has been successfully demonstrated by several growth methods for elemental semiconductors, such as Si and Ge, as well as for III-V and II-VI compounds. Nanotubes of various non-carbon materials have been found and characterized. Theoretical modelling of these structures continues to reveal fascinating attributes. The electronic functionality of these materials, based on the directional transport of charges or energy, makes them ideal building blocks for interconnecting individual quantum systems in supramolecular architectures, field effect transistors or photonic wires. The large surface to volume ratio results in a pronounced sensitivity to environmental conditions making them suitable as sensors in nanoscale devices.

Graphene is the latest carbon allotrope to be experimentally discovered, and it is now at the centre of a significant experimental and theoretical research effort. In particular, near-ballistic transport at room temperature and high carrier mobilities make it a potential material for nanoelectronics, especially for high frequency applications. It is now possible to produce graphene samples with areas exceeding thousands of square microns by means of micro-mechanical cleavage of graphite, and much larger by "epitaxial" growth on SiC. An ongoing effort is being devoted to large-scale production and growth on different substrates of choice. Graphene nanoribbons are the counterpart of nanotubes in graphene nanoelectronics.

Hot topics to be covered by the symposium:
• Progress in the synthesis of nanotubes/nanowires/graphene
• Progress in the assembly of nanotubes/nanowires into well-controlled architectures
• Electron and spin transport
• Light absorption, emission, and scattering
• Carrier interactions, ultrafast dynamics of carriers, excitons, and phonons, band structure and optical spectra
• Novel characterization techniques.
• Theoretical modelling of growth, electronic and optical properties
• Fabrication and characterization of nanotube/nanowires/graphene devices, sensors, actuators.
• Nanocomposites
• Applications and commercialisation
• Health/toxicity related issues

List of invited speakers:
• Kirill Bolotin (Vanderbilt University, USA)
• Volodia Falko (Lancaster University, UK)
• Andre Geim (Manchester University, UK)
• Irina Grigorieva (Manchester University, UK)
• Paco Guinea (Instituto de Ciencia de Materiales de Madrid, Spain)
• Dirk Guldi (Friedrich-Alexander-Universität Erlangen-Nürnberg, Germany)
• Achim Hartschuh (Munich University, Germany)
• Byung Hee Hong (Sungkyunkwan University, Korea)
• Ado Jorio (University of Belo Horizonte, Brazil)
• Misha Katsnelson (Radboud University of Nijmegen, The Netherlands)
• Brian Korgel (University of Texas at Austin, USA)
• Alexey Kuzmenko (Université de Genève, Switzerland)
• Annick Loiseau (LEM, Chatillon, France)
• Jannik Meyer (University of Ulm, Germany)
• Alain Penicaud (Université Bordeaux, France)
• Vasili Perebeinos (IBM New York, USA)
• Maurizio Prato(Universita’ di Trieste, Italy)
• Stephan Roche (CEA, Grenoble, France)
• John Rogers (University of Illinois at Urbana-Champaign, USA)
• Rodney Ruoff (The University of Texas at Austin, USA)
• Lars Samuelson (Lund University, Sweden)
• Thomas Seyller (Friedrich-Alexander-Universität Erlangen-Nürnberg, Germany)
• Christoph Stampfer (ETH Zurich, Switzerland)
• Zhipei Sun (University of Cambridge, UK)
• Sasha Tzalenchuk (NPL, UK)

Accepted papers will be published in Physica E (Elsevier).





           JEOL (ITALIA) S.p.A.



Symposium organizers:

Andrea Carlo Ferrari
University of Cambridge
Engineering Department
9 JJ Thomson Avenue
Cambridge CB3 OFA
Tel: +44 1223 748351
Fax:+44 1223 748348
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Liberato Manna
National Nanotechnology Institute
Distretto Tecnologico ISUFI
Via per Arnesano
73100 Lecce
Tel: +39 0832 298207
Fax:+39 0832 298237
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Manish Chhowalla
Rutgers University
Materials Science and Engineering
607 Taylor Road
Piscataway, NJ 08854
Tel: +1 732 445 5619
Fax:+1 732 445 5619
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Kostya Novoselov
University of Manchester
School of Physics & Astronomy
Oxford Road
Manchester M13 9PL
Tel: +44 (0)161 275 41 19
Fax:+44 (0)161 275 40 56
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Andreia Luisa da Rosa
University Bremen
Bremen Center for Computational Materials Science
TAB Building, Entrance A, Room 3.02
28359 Bremen
Tel: +49 (0)421 218 4580
Fax:+49 (0)421 218 4764
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