| 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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Müller, Christian
Chalmers University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (43/43 displayed)
- 2024Electrically Programmed Doping Gradients Optimize the Thermoelectric Power Factor of a Conjugated Polymercitations
- 2024Electrically Programmed Doping Gradients Optimize the Thermoelectric Power Factor of a Conjugated Polymercitations
- 2024Impact of Oligoether Side-Chain Length on the Thermoelectric Properties of a Polar Polythiophenecitations
- 2024A surface passivated fluorinated polymer nanocomposite for carbon monoxide resistant plasmonic hydrogen sensingcitations
- 2024A surface passivated fluorinated polymer nanocomposite for carbon monoxide resistant plasmonic hydrogen sensingcitations
- 2023Bulk-Processed Plasmonic Plastic Nanocomposite Materials for Optical Hydrogen Detectioncitations
- 2023Remarkable conductivity enhancement in P-doped polythiophenes via rational engineering of polymer-dopant interactionscitations
- 2023Impact of oxidation-induced ordering on the electrical and mechanical properties of a polythiophene co-processed with bistriflimidic acidcitations
- 2023Polymer-Based n-Type Yarn for Organic Thermoelectric Textilescitations
- 2023Hexanary blends: a strategy towards thermally stable organic photovoltaicscitations
- 2023Revealing the coaction of viscous and multistability hysteresis in an adhesive, nominally flat punch: a combined numerical and experimental studycitations
- 2022Charge transport in doped conjugated polymers for organic thermoelectricscitations
- 2022Tuning of the elastic modulus of a soft polythiophene through molecular dopingcitations
- 2022Correlating Acceptor Structure and Blend Nanostructure with the Photostability of Nonfullerene Organic Solar Cellscitations
- 2022Organogels from Diketopyrrolopyrrole Copolymer Ionene/Polythiophene Blends Exhibit Ground-State Single Electron Transfer in the Solid Statecitations
- 2022Double Doping of a Low-Ionization-Energy Polythiophene with a Molybdenum Dithiolene Complexcitations
- 2021Repurposing Poly(3-hexylthiophene) as a Conductivity-Reducing Additive for Polyethylene-Based High-Voltage Insulationcitations
- 2021Sequential doping of solid chunks of a conjugated polymer for body-heat-powered thermoelectric modulescitations
- 2021Repurposing Poly(3-hexylthiophene) as a Conductivity-Reducing Additive for Polyethylene-Based High-Voltage Insulation.citations
- 2020Sequential Doping of Ladder-Type Conjugated Polymers for Thermally Stable n-Type Organic Conductorscitations
- 2019Thermally Activated in Situ Doping Enables Solid-State Processing of Conducting Polymers.citations
- 2019Humidity Sensing Behavior of Endohedral Li-Doped and Undoped SWCNT/SDBS Composite Filmscitations
- 2019Solar Energy Storage by Molecular Norbornadiene–Quadricyclane Photoswitches: Polymer Film Devicescitations
- 2019Highly structured graphene polyethylene nanocompositescitations
- 2018Highly stable doping of a polar polythiophene through co-processing with sulfonic acids and bistriflimidecitations
- 2018Uniform doping of graphene close to the charge neutrality point by polymer-assisted spontaneous assembly of molecular dopantscitations
- 2017Isothermal Crystallization Kinetics and Time-Temperature-Transformation of the Conjugated Polymer: Poly(3-(2 '-ethyl)hexylthiophene)citations
- 2017Electrical and optical properties of reduced graphene oxide thin film deposited onto polyethylene terephthalate by spin coating techniquecitations
- 2017Polar Side Chains Enhance Processability, Electrical Conductivity, and Thermal Stability of a Molecularly p-Doped Polythiophenecitations
- 2017Herstellung und Charakterisierung dünner Schichten aus Bleihalogenid-Perowskit-Halbleitern und darauf basierender Solarzellen
- 2017Controlled molecular orientation of inkjet printed semiconducting polymer fibers by crystallization templatingcitations
- 2017Enhanced Electrical Conductivity of Molecularly p-Doped Poly(3-hexylthiophene) through Understanding the Correlation with Solid-State Order.citations
- 2017Bulk Doping of Millimeter-Thick Conjugated Polymer Foams for Plastic Thermoelectricscitations
- 2017A Solution-Doped Polymer Semiconductor : Insulator Blend for Thermoelectricscitations
- 2016Electromechanical Behavior of Chemically Reduced Graphene Oxide and Multi-walled Carbon Nanotube Hybrid Materialcitations
- 2016A Solution-Doped Polymer Semiconductor:Insulator Blend for Thermoelectricscitations
- 2016Thermoelectric plastics: from design to synthesis, processing and structure–property relationshipscitations
- 2015Comparison of selenophene and thienothiophene incorporation into pentacyclic lactam-based conjugated polymers for organic solar cellscitations
- 2014Structure-Property Relationships of Oligothiophene-Isoindigo Polymers for Efficient Bulk-Heterojunction Solar Cellscitations
- 2014Structure–property relationships of oligothiophene–isoindigo polymers for efficient bulk-heterojunction solar cellscitations
- 2011Glue line nondestructive assessment in timber laminates with an air-coupled ultrasonic techniquecitations
- 2011Synthesis, thin-film morphology, and comparative study of bulk and bilayer heterojunction organic photovoltaic devices using soluble diketopyrrolopyrrole moleculescitations
- 2008Laser welding of shape memory alloys for medical applications
Places of action
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article
Electrically Programmed Doping Gradients Optimize the Thermoelectric Power Factor of a Conjugated Polymer
Abstract
<jats:title>Abstract</jats:title><jats:p>Functionally graded materials (FGMs) are widely explored in the context of inorganic thermoelectrics, but not yet in organic thermoelectrics. Here, the impact of doping gradients on the thermoelectric properties of a chemically doped conjugated polymer is studied. The in‐plane drift of counterions in moderate electric fields is used to create lateral doping gradients in films composed of a polythiophene with oligoether side chains, doped with 2,3,5,6‐tetrafluoro‐tetracyanoquinodimethane (F<jats:sub>4</jats:sub>TCNQ). Raman microscopy reveals that a bias voltage of as little as 5 V across a 50 µm wide channel is sufficient to trigger counterion drift, resulting in doping gradients. The effective electrical conductivity of the graded channel decreases with bias voltage, while an overall increase in Seebeck coefficient is observed, yielding an up to eight‐fold enhancement in power factor. Kinetic Monte Carlo simulations of graded films explain the increase in power factor in terms of a roll‐off of the Seebeck coefficient at high electrical conductivities in combination with a mobility decay due to increased Coulomb scattering at high dopant concentrations. Therefore, the FGM concept is found to be a way to improve the thermoelectric performance of not yet optimally doped organic semiconductors, which may ease the screening of new materials as well as the fabrication of devices.</jats:p>