O
Oliver Groening
Researcher at Swiss Federal Laboratories for Materials Science and Technology
Publications - 13
Citations - 1205
Oliver Groening is an academic researcher from Swiss Federal Laboratories for Materials Science and Technology. The author has contributed to research in topics: Field electron emission & Carbon nanotube. The author has an hindex of 10, co-authored 13 publications receiving 1063 citations. Previous affiliations of Oliver Groening include University of Cambridge.
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Journal ArticleDOI
Carbon nanotubes as field emission sources
William I. Milne,Kenneth B. K. Teo,Gehan A. J. Amaratunga,Pierre Legagneux,Laurent Gangloff,Jean-Philippe Schnell,V. Semet,V. Thien Binh,Oliver Groening +8 more
TL;DR: In this article, the PECVD growth process, and the microfabrication techniques needed to produce well defined carbon nanotube based micro-electron sources for use in novel parallel e-beam lithography and high frequency microwave amplifier systems are reviewed.
Journal ArticleDOI
Achieving high-current carbon nanotube emitters.
Eric Minoux,Oliver Groening,Kenneth B. K. Teo,S. H. Dalal,Laurent Gangloff,Jean-Philippe Schnell,Ludovic Hudanski,Ian Y. Y. Bu,Pascal Vincent,Pierre Legagneux,Gehan A. J. Amaratunga,William I. Milne +11 more
TL;DR: Using rapid thermal annealing to improve both the crystallinity of the carbon nanotubes and their electrical contact to the substrate, it is possible to reduce this voltage drop, allowing very high currents of up to 100 microA to be achieved per emitter with no significant deviation from the classical Fowler-Nordheim behavior.
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Boron nitride nanomesh: functionality from a corrugated monolayer.
Simon Berner,Martina Corso,Roland Widmer,Oliver Groening,Robert Laskowski,Peter Blaha,Karlheinz Schwarz,A. Goriachko,Herbert Over,Stefan Gsell,Matthias Schreck,Hermann Sachdev,Thomas Greber,Jürg Osterwalder +13 more
TL;DR: The nanomesh exhibits a remarkable thermal stability and chemical inertness: it is robust against immersion in water and electrolyte solution and shows the functionality of a regular array of trapping potentials as it is demonstrated by the stable and site selective adsorption of different kinds of planar molecules.
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Aligned carbon nanotubes/fibers for applications in vacuum microwave amplifiers
William I. Milne,Kbk Teo,Eric Minoux,Oliver Groening,Laurent Gangloff,Ludovic Hudanski,Jean-Philippe Schnell,Dominique Dieumegard,F. Peauger,I. Y. Y. Bu,M. S. Bell,Pierre Legagneux,G. Hasko,Gehan A. J. Amaratunga +13 more
TL;DR: In this article, the authors describe the plasma enhanced chemical vapor deposition growth of vertically aligned carbon nanotubes and how well controlled arrays of such structures can be grown, and how high current densities of ∼1A∕cm2, under direct current and 1.5GHz direct modulation, can be obtained from CNT cathodes.
Journal ArticleDOI
Collective All-Carbon Magnetism in Triangulene Dimers
Shantanu Mishra,Doreen Beyer,Kristjan Eimre,Ricardo Ortiz,Joaquín Fernández-Rossier,Reinhard Berger,Oliver Groening,Carlo A. Pignedoli,Roman Fasel,Xinliang Feng,Pascal Ruffieux +10 more
TL;DR: In this paper, on-surface synthesis and a proof-of-principle experimental study of magnetism in covalently bonded triangulene dimers are presented.