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Kotakoski, Jani
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Topics
Publications (16/16 displayed)
- 2024Scalable bottom-up synthesis of Co-Ni-doped graphene.citations
- 2024Probing the interaction range of electron beam-induced etching in STEM by a non-contact electron beam
- 2023Interface effects on titanium growth on graphenecitations
- 2023Creation of Single Vacancies in hBN with Electron Irradiationcitations
- 2023Revealing the influence of edge states on the electronic properties of PtSe 2citations
- 2022Indirect measurement of the carbon adatom migration barrier on graphenecitations
- 2021Carbon Nano-onions: Potassium Intercalation and Reductive Covalent Functionalizationcitations
- 2021The morphology of doubly-clamped graphene nanoribbons
- 2020Cluster Superlattice Membranescitations
- 2019Enhanced Tunneling in a Hybrid of Single-Walled Carbon Nanotubes and Graphenecitations
- 2017Progress in electronics and photonics with nanomaterialscitations
- 2017Progress in electronics and photonics with nanomaterialscitations
- 2014Nitrogen controlled iron catalyst phase during carbon nanotube growthcitations
- 2013Scaling properties of charge transport in polycrystalline graphenecitations
- 2013Defects in bilayer silica and graphene: common trends in diverse hexagonal two-dimensional systemscitations
- 2006Energetics, structure, and long-range interaction of vacancy-type defects in carbon nanotubescitations
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article
Indirect measurement of the carbon adatom migration barrier on graphene
Abstract
<p>Although surface diffusion is critical for many physical and chemical processes, including the epitaxial growth of crystals and heterogeneous catalysis, it is particularly challenging to directly study. Here, we estimate the carbon adatom migration barrier on freestanding monolayer graphene by quantifying its temperature-dependent electron knock-on damage. Due to the fast healing of vacancies by diffusing adatoms, the damage rate decreases with increasing temperature. By analyzing the observed damage rates at 300-1073 K using a model describing our finite scanning probe, we find a barrier of (0.33 & PLUSMN; 0.03) eV.</p>