T
Tim O. Wehling
Researcher at University of Bremen
Publications - 172
Citations - 10165
Tim O. Wehling is an academic researcher from University of Bremen. The author has contributed to research in topics: Graphene & Scanning tunneling microscope. The author has an hindex of 47, co-authored 163 publications receiving 8736 citations. Previous affiliations of Tim O. Wehling include University of Hamburg & Los Alamos National Laboratory.
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Journal ArticleDOI
Molecular doping of graphene
Tim O. Wehling,Kostya S. Novoselov,Sergey V. Morozov,E. E. Vdovin,Mikhail I. Katsnelson,and A. K. Geim,Alexander I. Lichtenstein +6 more
TL;DR: This letter presents the first joint experimental and theoretical investigation of adsorbate-induced doping of graphene, and shows that this peculiar density of states (DOS) of graphene is ideal for "chemical sensor" applications and explains the recently observed NO2 single molecule detection.
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Dirac materials
TL;DR: A wide range of materials, such as d-wave superconductors, graphene, and topological insulators, share a fundamental similarity: their low-energy fermionic excitations behave as massless Dirac particles rather than fermions obeying the usual Schrodinger Hamiltonian as mentioned in this paper.
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Strength of effective Coulomb interactions in graphene and graphite.
Tim O. Wehling,Ersoy Şaşıoğlu,Christoph Friedrich,Alexander I. Lichtenstein,Mikhail I. Katsnelson,Stefan Blügel +5 more
TL;DR: To obtain an effective many-body model of graphene and related materials from first principles, the partially screened frequency dependent Coulomb interaction is calculated and the effective background dielectric constant of graphite is found to be ϵ=2.5 in very good agreement with experiment.
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First-principles studies of water adsorption on graphene: The role of the substrate
TL;DR: In this paper, the electronic properties of graphene upon water adsorption were investigated and the influence of the SiO2 substrate in this context using density functional calculations, and it was shown that H2O adsorbates can shift the substrate impurity bands and change their hybridization with the graphene bands.
Journal ArticleDOI
First-principles studies of water adsorption on graphene: The role of the substrate
TL;DR: In this article, the electronic properties of graphene upon water adsorption were investigated and the influence of the SiO2 substrate in this context using density functional calculations, and it was shown that H2O adsorbates can shift the substrate's impurity bands and change their hybridization with the graphene bands.