| 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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Kolosov, Oleg Victor
Lancaster University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (29/29 displayed)
- 2023Determination of electric and thermoelectric properties of molecular junctions by AFM in peak force tapping modecitations
- 2022Low Thermal Conductivity in Franckeite Heterostructurescitations
- 2022Thermoelectric properties of organic thin films enhanced by π-π stackingcitations
- 2021Thermoelectric voltage modulation via backgate doping in graphene nanoconstrictions studied with STGM
- 2021SCANNING THERMAL MICROSCOPY OF 2D MATERIALS IN HIGH VACUUM ENVIRONMENT
- 2020Scale-Up of Room-Temperature Constructive Quantum Interference from Single Molecules to Self-Assembled Molecular-Electronic Filmscitations
- 2020Direct mapping of local Seebeck coefficient in 2D material nanostructures via scanning thermal gate microscopy
- 2019Visualisation of subsurface defects in van-der-Waals heterostructures via 3D SPM mapping
- 2018Geometrically Enhanced Thermoelectric Effects in Graphene Nanoconstrictionscitations
- 2018Mechanical Properties of Advanced Gas-Cooled Reactor Stainless Steel Cladding After Irradiationcitations
- 2017Structural and electrical characterization of SiO2 gate dielectrics deposited from solutions at moderate temperatures in aircitations
- 2017Structural and electrical characterization of SiO2 gate dielectrics deposited from solutions at moderate temperatures in air
- 2017Correlation of nano-scale electrical and topographical mapping of buried nanoscale semiconductor junctions
- 2017Imaging subsurface defects in WS2/WSe2 CVD flakes via Ultrasonic Force Microscopies
- 2017Subsurface imaging of stacking faults and dislocations in WS2 CVD grown flakes via Ultrasonic and Heterodyne Force Microscopy
- 2017Characterisation of local thermal properties in nanoscale structures by scanning thermal microscopy
- 2017Subsurface imaging of two-dimensional materials at the nanoscalecitations
- 2015Nanometre scale 3D nanomechanical imaging of semiconductor structures from few nm to sub-micrometre depthscitations
- 2014Graphitic platform for self-catalysed InAs nanowires growth by molecular beam epitaxycitations
- 2014Nanomechanical morphology of amorphous, transition, and crystalline domains in phase change memory thin filmscitations
- 2014Nanothermal characterization of amorphous and crystalline phases in chalcogenide thin films with scanning thermal microscopycitations
- 2014How Deep Ultrasonic and Heterodyne Force Microscopies Can Look at the Nanostructure of 2D Materials?
- 2013Atomic force acoustic microscopy
- 2005Application specific integrated circuitry for controlling analysis of a fluid
- 2005Multiparameteric oil condition sensor based on the tuning fork technology for automotive applicationscitations
- 2004Application specific integrated circuitry for controlling analysis of a fluid
- 2003Local probing of thermal properties at submicron depths with megahertz photothermal vibrations.citations
- 2002Nanometer-scale mechanical imaging of aluminum damascene interconnect structures in a low-dielectric-constant polymer.citations
- 2000Nanoscale elastic imaging of aluminum/low-k dielectric interconnect structures
Places of action
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article
Geometrically Enhanced Thermoelectric Effects in Graphene Nanoconstrictions
Abstract
The influence of nanostructuring and quantum confinement on the thermoelectric properties of materials has been extensively studied. While this has made possible multiple breakthroughs in the achievable figure of merit, classical confinement, and its effect on the local Seebeck coefficient has mostly been neglected, as has the Peltier effect in general due to the complexity of measuring small temperature gradients locally. Here we report that reducing the width of a graphene channel to 100 nm changes the Seebeck coefficient by orders of magnitude. Using a scanning thermal microscope allows us to probe the local temperature of electrically contacted graphene two-terminal devices or to locally heat the sample. We show that constrictions in mono- and bilayer graphene facilitate a spatially correlated gradient in the Seebeck and Peltier coefficient, as evidenced by the pronounced thermovoltage Vth and heating/cooling response ΔTPeltier, respectively. This geometry dependent effect, which has not been reported previously in 2D materials, has important implications for measurements of patterned nanostructures in graphene and points to novel solutions for effective thermal management in electronic graphene devices or concepts for single material thermocouples.