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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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Haque, Aman
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Topics
Publications (6/6 displayed)
- 2023Heavy ion irradiation induced failure of gallium nitride high electron mobility transistors: effects of in-situ biasingcitations
- 2023Effect of simultaneous electrical and mechanical stressing on porosity of Ti<sub>3</sub>C<sub>2</sub>T <sub>x</sub> MXene films
- 2022Band Alignment of Al<sub>2</sub>O<sub>3</sub> on α-(Al<sub>x</sub>Ga<sub>1-x</sub>)<sub>2</sub>O<sub>3</sub>citations
- 2022Non-destructive depth-resolved characterization of residual strain fields in high electron mobility transistors using differential aperture x-ray microscopycitations
- 2021Defects and grain boundary effects in MoS<SUB>2</SUB>: A molecular dynamics studycitations
- 2020In Situ Transmission Electron Microscopy Observations of Forward Bias Degradation of Vertical Geometry β-Ga<sub>2</sub>O<sub>3</sub> Rectifierscitations
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article
Effect of simultaneous electrical and mechanical stressing on porosity of Ti<sub>3</sub>C<sub>2</sub>T <sub>x</sub> MXene films
Abstract
<jats:title>Abstract</jats:title><jats:p>MXenes are atomically layered carbides and nitrides of transition metals that have potential for micro-devices applications in energy storage, conversion, and transport. This emerging family of materials is typically studied as nanosheets or ultra-thin films, for which the internal defects are mostly nanoscale flake-flake interface separation type. However, micro-devices applications would require thicker films, which exhibit very high density of microscale pores. Electrical conductivity of thicker MXenes is significantly lower than nanosheets, and the physics of defect size and density control are also different and less understood. Current art is to perform high temperature annealing to improve the electrical conductivity, which can structurally alter or degrade MXene. The key contribution of this study is a room-temperature annealing process that exploits the synergy between electrical pulses and compressive mechanical loading. Experimental results indicate over a 90% increase in electrical conductivity, which reflects a decrease in void size and density. In the absence of compressive loading, the same process resulted in a conductivity increase of approximately 75%. Analytical spectroscopy and microscopy indicated that the proposed multi-stimuli process kept the MXene composition intact while significantly decreasing the void size and density.</jats:p>