| 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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Van Vlierberghe, Sandra
Ghent University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (27/27 displayed)
- 2024Tailorable acrylate-endcapped urethane-based polymers for precision in digital light processing : versatile solutions for biomedical applicationscitations
- 2024Toward in vitro vascular wall models : digital light processing of acrylate‐edcapped urethane‐based polymers into tubular constructs
- 2023Printability evaluation of UV-curable aqueous laponite/urethane-based PEG inkscitations
- 2023Volumetric printing of thiol‐ene photo‐cross‐linkable poly(ε‐caprolactone) : a tunable material platform serving biomedical applicationscitations
- 2023Solid‐state crosslinkable, shape‐memory polyesters serving tissue engineeringcitations
- 2023Microstructured Optical Fiber Made From Biodegradable and Biocompatible Poly(D,L-Lactic Acid) (PDLLA)citations
- 2023Photo-crosslinkable biodegradable polymer coating to control fertilizer releasecitations
- 2022Environmental and economic sustainability of crack mitigation in reinforced concrete with SuperAbsorbent polymers (SAPs)citations
- 2021Increasing the Microfabrication Performance of Synthetic Hydrogel Precursors through Molecular Designcitations
- 2021Increasing the microfabrication performance of synthetic hydrogel precursors through molecular designcitations
- 2021Atomic layer deposition on polymer thin films : on the role of precursor infiltration and reactivitycitations
- 2020Laser welding of carbon fibre filled polytetra fluoroethylenecitations
- 2020The contribution of elastic wave NDT to the characterization of modern cementitious mediacitations
- 2019Amorphous random copolymers of lacOCA and manOCA for the design of biodegradable polyesters with tuneable propertiescitations
- 2019Amorphous random copolymers of lacOCA and manOCA for the design of biodegradable polyesters with tuneable propertiescitations
- 2019Poly(D, L-Lactic Acid) (PDLLA) Biodegradable and Biocompatible Polymer Optical Fibercitations
- 2018Clear to clear laser welding for joining thermoplastic polymers: A comparative study based on physicochemical characterizationcitations
- 2018Ultrathin Poly-DL-Lactic Membranes for Corneal Endothelial Transplantation
- 2018Poly(methyl methacrylate) capsules as an alternative to the ‘’proof-of-concept’’ glass capsules used in self-healing concrete
- 2018Localized optical- quality doping of graphene on silicon waveguides through a TFSA- containing polymer matrixcitations
- 2018Ring opening copolymerisation of lactide and mandelide for the development of environmentally degradable polyesters with controllable glass transition temperaturescitations
- 2017Combinatory approach of methacrylated alginate and acid monomers for concrete applicationscitations
- 2017Characterization of methacrylated polysaccharides in combination with amine-based monomers for application in mortarcitations
- 2016Indirect solid freeform fabrication of an initiator-free photocrosslinkable hydrogel precursor for the creation of porous scaffoldscitations
- 2016Deep proton writing with 12 MeV protons for rapid prototyping of microstructures in polymethylmethacrylatecitations
- 2016Chapter 21 – Biodegradable polyesters: from monomer to application
- 2011Gelatin functionalization of biomaterial surfaces : strategies for immobilization and visualizationcitations
Places of action
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article
Localized optical- quality doping of graphene on silicon waveguides through a TFSA- containing polymer matrix
Abstract
<p>The use of graphene in optical and photonic applications has gained much attention in recent years. To maximize the exploitation of graphene's extraordinary optical properties, precise control over its Fermi level (e.g. by means of chemical doping) will be of vital importance. In this work, we show the usage of a versatile p-doping strategy based on the incorporation of bis(trifluoromethanesulfonyl)amide (TFSA), functioning as an active p-dopant molecule, into a poly(2,2,3,3,4,4,5,5-octafluoropentyl methacrylate) (POFPMA) polymer matrix. The TFSA/POFPMA dopant can be utilized both onto large size graphene regions via spin coating and on small predefined spatial zones of micrometer dimension by localized inkjet printing. Whereas pure TFSA suffers from a clustered layer deposition combined with environmental instability, the application of the POFPMA polymer matrix yields doping layers revealing superior properties counteracting the existing shortcomings of pure TFSA. A first key finding relates to the optical quality of the dopant layer. We obtain a layer with an extremely low surface roughness (0.4-0.8 nm/25 μm<sup>2</sup>) while exhibiting very high transparency (absorbance <0.05%) over the 500-1900 nm wavelength range, with strongly enhanced doping stability as a function of time up to several weeks (for inkjet-printed deposition) and months (for spin coated deposition). Finally, the doping efficiency is very high, reaching a carrier density around +4 × 10<sup>13</sup> cm<sup>−2</sup> whereas the optical transmission of a graphene-covered Si waveguide revealed a strong improvement (4.22 dB transmission increase per 100 μm graphene length at the wavelength of 1550 nm) after deposition of the dopant via inkjet printing.</p>