Real-Time Monitoring of Growing Nanoparticles
G. Renaud(Centre National de la Recherche Scientifique), Rémi Lazzari(Centre National de la Recherche Scientifique), Christine Revenant(Centre National de la Recherche Scientifique), Antoine Barbier(Centre National de la Recherche Scientifique), M. Noblet(Centre National de la Recherche Scientifique), Olivier Ulrich(Centre National de la Recherche Scientifique), Frédéric Leroy(Centre National de la Recherche Scientifique), Jacques Jupille(Centre National de la Recherche Scientifique), Y. Borensztein(Centre National de la Recherche Scientifique), Claude R. Henry(Centre National de la Recherche Scientifique), Jean-Paul Deville(Centre National de la Recherche Scientifique), Fabrice Scheurer(Centre National de la Recherche Scientifique), Jeannot Mané-Mané(Centre National de la Recherche Scientifique), Olivier Fruchart(Centre National de la Recherche Scientifique)
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Abstract
One challenge in the production of nanometer-sized objects with given properties is to control their growth at a macroscopic scale in situ and in real time. A dedicated ultrahigh-vacuum grazing-incidence small-angle x-ray scattering setup has been developed, yielding high sensitivity and dynamics. Its capabilities to derive the average particle shape and size and the film growth mode and ordering and to probe both surfaces and buried interfaces are illustrated for two prototypical cases: the model catalyst Pd/MgO(100) and the self-organized Co/Au(111) system. A wide range of technologically important systems can potentially be investigated in various gaseous environments.
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