| 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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Zhou, Lei
Eindhoven University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 2023Non-destructive evaluation of magnetic anisotropy associated with crystallographic texture of interstitial free steelscitations
- 2023In-situ dynamic monitoring of phase transformation in steels using a multi-frequency electromagnetic sensorcitations
- 2022Non-destructive evaluation of magnetic anisotropy associated with crystallographic texture of interstitial free steels using an electromagnetic sensor
- 2022ZnFe 2 O 4 hollow rods enabling accelerated polysulfide conversion for advanced lithium-sulfur batteriescitations
- 2022Detection of decarburising depth in Hadfield steels using a multi-magnetic NDE methodcitations
- 2022Quantitative characterisation and modelling of the effect of cut edge damage on the magnetic properties in NGO electrical steelcitations
- 2022ZnFe2O4 hollow rods enabling accelerated polysulfide conversion for advanced lithium-sulfur batteriescitations
- 2019Real-time in-line steel microstructure control through magnetic properties using an EM sensorcitations
- 2019Non-destructive measurement of microstructure and tensile strength in varying thickness commercial DP steel strip using an EM sensorcitations
- 2019Measured and modelled low field relative permeability for dual phase steels at high temperaturecitations
- 2018Product uniformity control - A research collaboration of european steel industries to non-destructive evaluation of microstructure and mechanical propertiescitations
- 2017Product Uniformity Control (PUC): How 15 European research institutes contribute to improve the in-line characterisation of microstructure and mechanical properties in the manufacturing of steel strip
- 2016In-line characterisation of microstructure and mechanical properties in the manufacturing of steel strip for the purpose of product uniformity control
- 2016In-line characterisation of microstructure and mechanical properties in the manufacturing of steel strip for the purpose of product uniformity control
- 2016Magnetic NDT for Steel Microstructure Characterisation – Modelling the Effect of Ferrite Grain Size on Magnetic Properties
- 2016Displacement-based multiscale modeling of fiber-reinforced composites by means of proper orthogonal decompositioncitations
- 2013Fabrication and characterization of transparent metallic electrodes in the terahertz domain
- 2013Fabrication and characterization of transparent metallic electrodes in the terahertz domain
Places of action
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document
Fabrication and characterization of transparent metallic electrodes in the terahertz domain
Abstract
The demand for transparent electrodes keeps increasing as new generations of electronic devices appear, including solar cells and touch screens. Indium tin oxide (ITO) is the most promising transparent electrode material to date [1] although there are several limitations when using ITO. Firstly, it is a brittle material and therefore flexible devices such as electronic paper would be hard to achieve. Secondly, the continuous increase in the price of indium due to limited availability worldwide makes its use unsustainable in the future.<br/>Our work is motivated by early work [2] showing that an optically opaque layer with a negative permittivity can be perfectly transparent when sandwiched between two carefully designed metamaterial layers. Here we present a method to achieve a transparent metallic electrode deposited on a substrate. By placing a composite layer consisting of dielectric and metallic stripes (AB layer) on top of the metallic electrode (C layer) (see Fig. 1(a)) we found that the backscattering from the metallic film (C layer) can be almost perfectly canceled, leading to transparency of the whole structure. We fabricated the transparent metallic electrodes and characterized them by the use of the T-Ray 4000 terahertz time-domain spectroscopy system. The physics behind the cancellation of the scattering from the target opaque layer requires carefully chosen geometrical parameters of the metamaterial layers, AB and C, (see Fig. 1(b)). Figure 1(c) displays the transmittance through the whole sample normalized to that through the silicon substrate. The transmittance through the C layer mesh is quite low for the frequency range 0.2 - 0.8 THz, reaching its maximum of approximately 0.45 at 0.8 THz. By placing the AB mesh on top of the C layer separated by 12.5 μm silica, the ABC device achieves almost a perfect transmittance at 0.57 THz. Moreover, in the frequency range 0.3 - 0.6 THz the ABC device has still higher transmittance than the C layer alone. Our experimental results match nicely with the full-wave simulations (solid lines, Fig. 1(c)) [3].