Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Oliver Rattunde"'
Autor:
Marc Dubois, Gabriel Christmann, Oliver Rattunde, Stefan Mertin, Paul Muralt, Sylvain Nicolay, Bernd Heinz
Publikováno v:
Mertin, S, Heinz, B, Rattunde, O, Christmann, G, Dubois, M A, Nicolay, S & Muralt, P 2018, ' Piezoelectric and structural properties of c-axis textured aluminium scandium nitride thin films up to high scandium content ', Surface and Coatings Technology, vol. 343, pp. 2-6 . https://doi.org/10.1016/j.surfcoat.2018.01.046
Partial substitution of aluminium by scandium in the wurtzite structure of aluminium nitride (AlN) leads to a large increase of the piezoelectric response by more than a factor of 2. Therefore, aluminium scandium nitride (ASN) thin films attracted mu
Autor:
Oliver Rattunde, Gabriel Christmann, Bernd Heinz, Stefan Mertin, M.-A. Dubois, Paul Muralt, Fazel Parsapour, Cosmin S. Sandu, Clemens Nyffeler, Vladimir Pashchenko
Publikováno v:
2017 IEEE International Ultrasonics Symposium (IUS).
Aluminium scandium nitride (ASN) exhibits a largely enhanced piezoelectric response as compared to aluminium nitride (AlN), which makes it an upcoming piezoelectric material for use in next generation RF filters, sensors, actuators and energy harvest
Autor:
Gabriel Christmann, Stefan Mertin, Bernd Heinz, Marc Alexandre Dubois, Paul Muralt, Sylvain Nicolay, Maurus Tschirky, Oliver Rattunde
Publikováno v:
2017 China Semiconductor Technology International Conference (CSTIC).
Aluminium scandium nitride (Al 1−x Sc x N) with its strongly enhanced piezoelectric response is the upcoming piezoelectric material of choice in next generation RF filters, sensors, actuators and energy harvesting devices. This paper will concentra
Publikováno v:
Surface and Coatings Technology. :131-135
High quality titanium nitride films have been deposited on room temperature substrates by energetic cluster impact (ECI). Golden and very smooth TiN films can be produced, having a dense and nearly isotropic composition without any columnar structure
Autor:
Daniel Rieser, Hellmut Haberland, Michael Moseler, Jürgen Kraft, Oliver Rattunde, Andreas Häfele
Publikováno v:
Journal of Applied Physics. 90:3226-3231
This article reports on experimental observations of surface smoothing by high energy cluster impact. Thin films have been produced by energetic cluster impact deposition (ECI), and the surface roughness and the power spectrum of the films have been
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. :522-536
Energetic cluster impacts have been applied for the production of high quality thin films as well as a tool for smoothing rough surfaces. Molecular dynamic (MD) simulations of cluster–surface collisions provide the following picture for the underly
Publikováno v:
Surface and Coatings Technology. :27-32
Smooth, well-adherent TiN and Ti x Al 1 − x N hard coatings were deposited at room temperature by energetic cluster impact. TiN or TiAlN clusters were produced by combining improved magnetron sputtering with reactive gas aggregation (1–4% nitroge
Publikováno v:
Computational Materials Science. 10:452-456
Dense and smooth thin films can be produced by the deposition of energetic clusters onto a solid surface. Roughnes, induced by random deposition of the clusters, is strongly suppressed by a downhill smoothing process. Molecular dynamic simulations of
Publikováno v:
Radiation Effects and Defects in Solids. 142:39-50
The evolution of the surface roughness of films produced by cluster deposition was studied experimentally and theoretically. Simple models were developed from a molecular dynamic description of cluster impact. For low cluster kinetic energy a ballist
Autor:
Thomas Reiners, You Qiang, Michael Moseler, Hellmut Haberland, Oliver Rattunde, Yonca Thurner
Publikováno v:
Surface Review and Letters. :887-890
A completely ionized beam of metal clusters is deposited with variable kinetic energy on a substrate. Mirror-like and strongly adhering films having unusual properties are produced for sufficiently high cluster impact energies. Numerical simulations