C
Christoph Stampfer
Researcher at RWTH Aachen University
Publications - 335
Citations - 16451
Christoph Stampfer is an academic researcher from RWTH Aachen University. The author has contributed to research in topics: Graphene & Quantum dot. The author has an hindex of 59, co-authored 315 publications receiving 14422 citations. Previous affiliations of Christoph Stampfer include ETH Zurich & Forschungszentrum Jülich.
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Journal ArticleDOI
Spatially Resolved Raman Spectroscopy of Single- and Few-Layer Graphene
D. Graf,F. Molitor,Klaus Ensslin,Christoph Stampfer,A. Jungen,Christofer Hierold,Ludger Wirtz +6 more
TL;DR: In this article, the authors used a scanning confocal approach to collect spectral data with spatial resolution, which allows them to directly compare Raman images with scanning force micrographs.
Journal ArticleDOI
Ultrahigh-mobility graphene devices from chemical vapor deposition on reusable copper
Luca Banszerus,Michael Schmitz,Stephan Engels,Stephan Engels,Jan Dauber,Jan Dauber,Martin Oellers,Federica Haupt,Kenji Watanabe,Takashi Taniguchi,Bernd Beschoten,Christoph Stampfer,Christoph Stampfer +12 more
TL;DR: It is shown that the quality of CVD-grown graphene depends critically on the used transfer process, and an advanced transfer technique is reported on that allows both reusing the copper substrate of the CVD growth and making devices with mobilities as high as 350,000 cm2 V–1 s–1, thus rivaling exfoliated graphene.
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Energy Gaps in Etched Graphene Nanoribbons
TL;DR: It is shown that two distinct voltage scales can be experimentally extracted that characterize the parameter region of suppressed conductance at low charge density in the ribbon.
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Raman spectroscopy as probe of nanometre-scale strain variations in graphene.
Christoph Neumann,Sven Reichardt,Pedro Venezuela,Marc Drögeler,Luca Banszerus,Michael Schmitz,Kenji Watanabe,Takashi Taniguchi,Francesco Mauri,Bernd Beschoten,Slava V. Rotkin,Slava V. Rotkin,Christoph Stampfer,Christoph Stampfer +13 more
TL;DR: It is shown that the observed 2D line width contains valuable information on strain variations in graphene on length scales far below the laser spot size, that is, on the nanometre-scale.
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Tunable Graphene Single Electron Transistor
TL;DR: Electronic transport experiments on a graphene single electron transistor are reported, investigating energy scales for the tunneling gap, the resonances in the constrictions, and for the Coulomb blockade resonances.