Addressing, Transport and Storage of information by single atoms and molecules

13-18 janv. 2013
Ecole de Physique des Houches Côte des Chavants F-74310 Les Houches Téléphone : 04 50 54 40 69 Fax : 04 50 55 53 25 - F-74310 Les Houches (France)
The fields of molecular scale electronics and molecular machines are currently very active because of their long term potential and the fast approaching limits of the conventional top-down lithography-based VLSI (Very Large Scale Integration). The expected advantages of these bottom-up approaches are now well-known: ultimate size, processing, cost, possibility to design finely-tuned molecular devices, self-assembly, scalability and energy consumption. But despite thousands of publications and some spectacular breakthroughs on single molecular devices (mostly by scanning probe experiments on metallic surfaces or in break-junction experiments) or large ensembles of molecules in solution (by electrochemistry or optics), all these devices are isolated, thus lack intermolecular communication, even though this is the key prerequisite for applications. Classical electrical circuitry by metallic wiring cannot be used at this scale for several reasons (size, reproducibility, stability, complexity of fabrication); electron transport by molecular wires is so far limited by the electrode-molecules contact resistances, as well as small and exponentially decreasing conductances. Therefore, a complete paradigm shift is required to explore completely new single electron and proton technology coupled to optical and/or electrical addressing for information transport and storage at the nanoscale. Recent developments have shown that it is now possible to tackle these ambitious objectives at the single atom or molecule level, on films of insulators, bulk insulators, or wide band-gap semi-conductors by: a) non-contact addressing by nano-optics, and by electrostatics b) long distance information transport by intramolecular single electron transfer, plasmon mediated intermolecular energy transfer, and intermolecular propagation of proton transfer or by conformation transfer c) information storage in conformations, or by charge trapping in atoms and molecules The objectives of this workshop are: 1) to gather scientists from different communities, using different techniques and approaches involved in the most recent developments in all aspects of this field 2) to foster students and post-docs towards this multidisciplinary approach (chemistry, simulation and theory, near-field microscopies, nano-optics). The workshop will be organized in series of lectures by senior scientists (45 mn) and shorter focused presentations by post-docs and PhD (20 mn) This workshop will be organized with scientific and administrative support of the European FET-OPEN project ARTIST (Alternative Routes Towards Information Storage and Transport at the atomic and molecular scale) (www.artist.cemes.fr)
Discipline scientifique : Chimie-Physique

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