Clusters assembled materials

Andres R P, Averback R S, Brown W L, Brus L E, Goddard W A III, Kaldor A, Louie S G, Moscovits M, Peercy P S, Riley S J, Siegel R W, Spaepen F and Wang Y Research opportunity on clusters and cluster-assembled materials—a department of energy, council on materials science panel report J. Mater. Res. 4 704... 

R. M. Fleming, T. Siegrist, P. M. Marsh, B. Hessen, A. R. Kortan, D. W. Murphy, R. C. Haddon, R. Tycko, G. Dabbagh, A. M. Mujsce, M. L. Kaplan, and S. M. Zahurak. In Clusters and Cluster-Assembled Materials, MRS Symposia Proceedings, Boston, edited by R. S. Averback, J. Bernholc, and D. L. Nelson, pages 691-696, Materials Research Society Press, Pittsburgh, PA, 1991. 

Huffman, D. R. Kratschmer, W. 1991 Solid C60 How we found it. In Clusters and cluster-assembled materials (ed. R. S. Averback, J. Bernholc D. L. Nelson) (Symp. Proc. vol. 206). Pittsburgh Material Research Society. 

The Pd clusters have been produced by a recently developed high-frequency laser evaporation source, ionized, then guided by ion optics through differentially pumped vacuum chambers and size-selected by a quadrupole mass spectrometer [16-18]. The monodispersed clusters have been deposited with low kinetic energy (0.1-2 eV) onto a MgO thin film surface. The clusters-assembled materials obtained in this way exhibit peculiar activity and selectivity in the polymerization of acetylene to form benzene and aliphatic hydrocarbons [30]. 

There are other fields where supported metal clusters will play a role like in the microelectronic technologies and in particular in the production of sensors or magnetic recording. Magnetic clusters provide a link between the magnetism at the atomic level and in the condensed state [25]. Finally, cluster-assembled materials offer new opportunities in material science. 

In Figure 2.6 we report the Raman spectra of the cluster-assembled material immediately after deposition in UHV conditions, obtained with different excitation wavelengths (532 nm and 632.8 nm). Using an excitation... 

Perez, A. Melinon, P. Dupuis, V. Jensen, P. Prevel, B. Tuaillon, J. Bardotti, L. Martet, C. Treilleux, M. Broyer, M. Pellarin, M. Vaille, J. L. Palpant, B. Lerme, J. Cluster assembled materials a novel class of nanostructured solids with original structures and properties. J. Phys. D 1997, 30,... 

The field of clusters and fullerenes represents areas of modern science where the properties are determined by the reduced coordination. This will modify the functional properties when clusters are used in disperse forms or as units in cluster assembled materials. Examples of applications can be catalysts, sensor materials, units in nanophase/nanocrystalline materials with improved mechanical, electrical, magnetic or optical properties, of cluster based materials for sun protection, solar energy conversion, as an alternative to quantum dots produced with traditional techniques, fabrication of mesoscopic systems etc. The hope is to tune the properties with cluster size, making cluster based materials with characteristics more advanced than those of conventional materials. Production of these types of cluster and exploration of their properties of free as well as deposited clusters are a challenging task of basic and applied science which will be covered in the following sections of this article. 

The design and production of cluster assembled materials is a rapidly growing area in the fields of applied science and technology. Such systems provide a new way of producing materials with unusual properties. The unique properties of fullerene molecules allow for the assumption that they will be widely used in the future for the creation of such materials. 

H.-P. Cheng and R. S. Berry, in Symposium on Clusters and Cluster, Assembled Materials, Vol. 206, edited by R. Averbach (Materials Research Society, 1991) pp. 241-252. 

S.G., Moscovits, M., Peercy, P.S., Riley, S.J., Siegel, R.W., Wang, Y Research opportunities on clusters and cluster-assembled materials. In A Department of Energy, Council on Materials Science Panel Report. J. Mater. Res. 4, 704-736 (1989)... 

K. Sattler, Editor Cluster Assembled Materials. Materials Science Forum, Vol. 232, TransTech Publications, Zurich (1996). 

Qian M, Reber AC, Ugrinov A, Chaki NK, Mandal S, Saavedra HM, Khanna SN, Sen A, Weiss PS (2010) Cluster-assembled materials toward nanomaterials with precise control over properties. ACS Nano 4(l) 235-240... 

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