| People | Locations | Statistics |
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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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Novoselov, Kostya S.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (26/26 displayed)
- 2024Resonant band hybridization in alloyed transition metal dichalcogenide heterobilayerscitations
- 2024Wandering principal optical axes in van der Waals triclinic materialscitations
- 2024Resonant Band Hybridization in Alloyed Transition Metal Dichalcogenide Heterobilayers.
- 2024DNA‐rGO Aerogel Bioanodes with Microcompartmentalization for High‐Performance Bioelectrochemical Systemscitations
- 20233D Printed Carbon Framework with the Graphene Aerogel for Microbial Fuel Cell Application
- 2021Sustainable and multifunctional composites of graphene‐based natural jute fiberscitations
- 2020Highly conductive, scalable, and machine washable graphene-based e-textiles for multifunctional wearable electronic applicationscitations
- 2020Emergence of Highly Linearly Polarized Interlayer Exciton Emission in MoSe2/WSe2 Heterobilayers with Transfer-Induced Layer Corrugationcitations
- 2020Emergence of Highly Linearly Polarized Interlayer Exciton Emission in MoSe 2 /WSe 2 Heterobilayers with Transfer-Induced Layer Corrugationcitations
- 2020Highly Conductive, Scalable and Machine Washable Graphene-Based E-Textiles for Multifunctional Wearable Electronic Applicationscitations
- 2019Ultrahigh performance of nanoengineered graphene-based natural jute fiber compositescitations
- 2019Ultra-high performance of nano-engineered graphene-based natural jute fiber compositescitations
- 2018High Performance Graphene-Based Natural Fibre Compositescitations
- 2018Infrared-to-violet tunable optical activity in atomic films of GaSe, InSe, and their heterostructurescitations
- 2018High-performance graphene-based natural fiber compositescitations
- 2018Mechanism of Gold-Assisted Exfoliation of Centimeter-Sized Transition-Metal Dichalcogenide Monolayerscitations
- 2018Growth of graphene on tantalum and its protective propertiescitations
- 2017Observing imperfection in atomic interfaces for van der Waals heterostructurescitations
- 2016High electron mobility, quantum Hall effect and anomalous optical response in atomically thin InSecitations
- 2015Deformation of Wrinkled Graphenecitations
- 2013Reversible loss of bernal stacking during the deformation of few-layer graphene in nanocompositescitations
- 2012Optimizing the reinforcement of polymer-based nanocomposites by graphenecitations
- 2011Strain mapping in a graphene monolayer nanocompositecitations
- 2011Development of a universal stress sensor for graphene and carbon fibrescitations
- 2010Interfacial stress transfer in a graphene monolayer nanocompositecitations
- 2007Breakdown of the adiabatic Born-Oppenheimer approximation in graphenecitations
Places of action
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article
Optimizing the reinforcement of polymer-based nanocomposites by graphene
Abstract
The stress transfer between the internal layers of multilayer graphene within polymer-based nanocomposites has been investigated from the stress-induced shifts of the 2D Raman band. This has been undertaken through the study of the deformation of an ideal composite system where the graphene flakes were placed upon the surface of a polymer beam and then coated with an epoxy polymer. It is found that the rate of band shift per unit strain for a monolayer graphene flake is virtually independent of whether it has one or two polymer interfaces (i.e., with or without an epoxy top coating). In contrast, the rate of band shift is lower for an uncoated bilayer specimen than a coated one, indicating relatively poor stress transfer between the graphene layers. Mapping of the strain in the coated bilayer regions has shown that there is strain continuity between adjacent monolayer and bilayer regions, indicating that they give rise to similar levels of reinforcement. Strain-induced Raman band shifts have also been evaluated for separate flakes of graphene with different numbers of layers, and it is found that the band shift rate tends to decrease with an increase in the number of layers, indicating poor stress transfer between the inner graphene layers. This behavior has been modeled in terms of the efficiency of stress transfer between the inner graphene layers. Taking into account the packing geometry of polymer-based graphene nanocomposites and the need to accommodate the polymer coils, these findings enable the optimum number of graphene layers for the best reinforcement to be determined. It is demonstrated that, in general, multilayer graphene will give rise to higher levels of reinforcement than monolayer material, with the optimum number of layers depending upon the separation of the graphene flakes in the nanocomposite. © 2012 American Chemical Society.