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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Mattevi, Cecilia
Imperial College London
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2022Substrate influence on transition metal dichalcogenide monolayer exciton absorption linewidth broadeningcitations
- 2022Platinum deposition on functionalised graphene for corrosion resistant oxygen reduction electrodescitations
- 2019Band-Structure Spin-Filtering in Vertical Spin Valves Based on Chemical Vapor Deposited WS2citations
- 2019Direct solution-phase synthesis of 1T’ WSe2 nanosheetscitations
- 2017A facile way to produce epoxy nanocomposites having excellent thermal conductivity with low contents of reduced graphene oxidecitations
- 2009Atomic and Electronic Structure of Graphene-Oxidecitations
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article
Atomic and Electronic Structure of Graphene-Oxide
Abstract
We elucidate the atomic and electronic structure of graphene oxide (GO) using annular dark field imaging of single and multilayer sheets and electron energy loss spectroscopy for measuring the fine structure of C and O K-edges in a scanning transmission electron microscope. Partial density of states and electronic plasma excitations are also measured for these GO sheets showing unusual pi* + sigma* excitation at 19 eV. The results of this detailed analysis reveal that the GO is rough with an average surface roughness of 0.6 nm and the structure is predominantly amorphous due to distortions from sp3 C-O bonds. Around 40% sp3 bonding was found to be present in these sheets with measured O/C ratio of 1:5. These sp2 to sp3 bond modifications due to oxidation are also supported by ab initio calculations