| 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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Stepien, Lukas
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (25/25 displayed)
- 2024Additive Manufacturing and Precipitation Hardening of Low-Alloyed Copper Alloys Containing Chromium and Hafnium
- 2024Effect of pre-heat temperature on enhancing the processability of pure zinc by laser-based powder bed fusion
- 2023Influence of Electron Beam Powder Bed Fusion Process Parameters at Constant Volumetric Energy Density on Surface Topography and Microstructural Homogeneity of a Titanium Aluminide Alloycitations
- 2023Process development for laser powder bed fusion of GRCop-42 using a 515 nm laser sourcecitations
- 2023Influence of Two-Step Heat Treatments on Microstructure and Mechanical Properties of a β-Solidifying Titanium Aluminide Alloy Fabricated via Electron Beam Powder Bed Fusioncitations
- 2023Locally Adapted Microstructures in an Additively Manufactured Titanium Aluminide Alloy Through Process Parameter Variation and Heat Treatmentcitations
- 2022Influence of Two-Step Heat Treatments on Microstructure and Mechanical Properties of a β-Solidifying Titanium Aluminide Alloy Fabricated via Electron Beam Powder Bed Fusioncitations
- 2022Locally adapted microstructures in an additively manufactured titanium aluminide alloy through process parameter variation and heat treatmentcitations
- 2022Pure Copper: Advanced Additive Manufacturingcitations
- 2021Additive manufacturing of titanium with different surface structures for adhesive bonding and thermal direct joining with fiber-reinforced polyether-ether-ketone (PEEK) for lightweight design applicationscitations
- 2021Electron beam powder bed fusion of γ-titanium aluminidecitations
- 2021Electron beam powder bed fusion of g-Titanium aluminide: Effect of processing parameters on part density, surface characteristics, and aluminum contentcitations
- 2021Additive Manufacturing of Titanium with Different Surface Structures for Adhesive Bonding and Thermal Direct Joining with Fiber-Reinforced Polyether-Ether-Ketone (PEEK) for Lightweight Design Applicationscitations
- 2020Additive manufacturing of complex pure copper parts via binder jetting
- 2020Boron-doped single-walled carbon nanotubes with enhanced thermoelectric power factor for flexible thermoelectric devicescitations
- 2019Laser Treatment as Sintering Process for Dispenser Printed Bismuth Telluride Based Pastecitations
- 2019Ammonia Plasma-Induced n-Type Doping of Semiconducting Carbon Nanotube Films: Thermoelectric Properties and Ambient Effectscitations
- 2018Pure Copper : Advanced Additive Manufacturing
- 2017Thermal operating window for PEDOT:PSS films and its related thermoelectric propertiescitations
- 2017Thermal operating window for PEDOT:PSS films and its related thermoelectric propertiescitations
- 2016Investigation of the Thermoelectric Power Factor of KOH-Treated PEDOT:PSS Dispersions for Printing Applicationscitations
- 2016Thermoelectric PEDOT:PSS and single-walled carbon nanotubes composites for printing applications
- 2015Ambient effects on the electrical conductivity of carbon nanotubescitations
- 2015Ambient effects on the electrical conductivity of carbon nanotubescitations
- 2014Optical absorption spectroscopy and properties of single walled carbon nanotubes at high temperaturecitations
Places of action
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article
Ambient effects on the electrical conductivity of carbon nanotubes
Abstract
We show that the electrical conductivity of single walled carbon nanotubes (SWCNT) networks is affected by oxygen and air humidity under ambient conditions by more than a magnitude. Later, we intentionally modified the electrical conductivity by functionalization with iodine and investigated the changes in the band structure by optical absorption spectroscopy. Measuring in parallel the tubes electrical conductivity and optical absorption spectra, we found that conduction mechanism in SWCNT is comparable to that of intrinsically conducting polymers. We identified, in analogy to conducting polymers, in the infrared spectra a new absorption band which is responsible for the increased conductivity, leading to a closing gap in semiconducting SWCNT. We could show that by different functionalizations of the same SWCNT starting material the properties like conductivity can be dramatically changed, leading to different imaginable applications. We investigated here, an ultraviolet sensor with weakly modified SWCNT.