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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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Fabiano, Simone
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (34/34 displayed)
- 2024Bismuth-Based Perovskite Derivates with Thermal Voltage Exceeding 40 mV/K
- 2023Detection of Ice Formation With the Polymeric Mixed Ionic‐Electronic Conductor PEDOT: PSS for Aeronauticscitations
- 2023Charge Transfer in the P(g42T-T):BBL Organic Polymer Heterojunction Measured with Core-Hole Clock Spectroscopycitations
- 2023Mechanically Adaptive Mixed Ionic-Electronic Conductors Based on a Polar Polythiophene Reinforced with Cellulose Nanofibrilscitations
- 2023Detection of Ice Formation With the Polymeric Mixed Ionic-Electronic Conductor PEDOT: PSS for Aeronauticscitations
- 2023Polymer-Based n-Type Yarn for Organic Thermoelectric Textilescitations
- 2023Charge Transfer in the P(g42T-T):BBL Organic PolymerHeterojunction Measured with Core-Hole Clock Spectroscopycitations
- 2022On the Origin of Seebeck Coefficient Inversion in Highly Doped Conducting Polymerscitations
- 2022Charge transport in doped conjugated polymers for organic thermoelectricscitations
- 2022Rational Materials Design for In Operando Electropolymerization of Evolvable Organic Electrochemical Transistorscitations
- 2022Synthetic nuances to maximize n-type organic electrochemical transistor and thermoelectric performance in fused lactam polymerscitations
- 2022Influence of Molecular Weight on the Organic Electrochemical Transistor Performance of Ladder-Type Conjugated Polymerscitations
- 2022Synthetic Nuances to Maximize n-Type Organic Electrochemical Transistor and Thermoelectric Performance in Fused Lactam Polymers.citations
- 2022Organogels from Diketopyrrolopyrrole Copolymer Ionene/Polythiophene Blends Exhibit Ground-State Single Electron Transfer in the Solid Statecitations
- 2021Enhanced ionic transport in ferroelectric polymer fiber matscitations
- 2021Amphipathic Side Chain of a Conjugated Polymer Optimizes Dopant Location toward Efficient N-Type Organic Thermoelectricscitations
- 2021Amphipathic Side Chain of a Conjugated Polymer Optimizes Dopant Location toward Efficient N-Type Organic Thermoelectricscitations
- 2021A high-conductivity n-type polymeric ink for printed electronicscitations
- 2020Cellulose-Conducting Polymer Aerogels for Efficient Solar Steam Generationcitations
- 2020Conductive polymer nanoantennas for dynamic organic plasmonicscitations
- 2020The effect of aromatic ring size in electron deficient semiconducting polymers for n-type organic thermoelectricscitations
- 2020Sequential Doping of Ladder-Type Conjugated Polymers for Thermally Stable n-Type Organic Conductorscitations
- 2020Sequential Doping of Ladder-Type Conjugated Polymers for Thermally Stable n-Type Organic Conductorscitations
- 2019An Evolvable Organic Electrochemical Transistor for Neuromorphic Applicationscitations
- 2019Impact of Singly Occupied Molecular Orbital energy on the n-doping efficiency of benzimidazole-derivativescitations
- 2018A Chemically Doped Naphthalenediimide-Bithiazole Polymer for n-Type Organic Thermoelectricscitations
- 2018Enhanced n-Doping Efficiency of a Naphthalenediimide-Based Copolymer through Polar Side Chains for Organic Thermoelectricscitations
- 2017Ferroelectric Surfaces for Cell Releasecitations
- 2017Thermoelectric Polymer Aerogels for Pressure-Temperature Sensing Applicationscitations
- 2016Polarization of ferroelectric films through electrolytecitations
- 2016High-Performance Hole Transport and Quasi-Balanced Ambipolar OFETs Based on D–A–A Thieno-benzo-isoindigo Polymerscitations
- 2016Energy Level Bending in Ultrathin Polymer Layers Obtained through Langmuir-Shafer Depositioncitations
- 2015Experimental evidence that short-range intermolecular aggregation is sufficient for efficient charge transport in conjugated polymerscitations
- 20113D nanoscale ordered architectures in thin films for organic electronics
Places of action
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article
On the Origin of Seebeck Coefficient Inversion in Highly Doped Conducting Polymers
Abstract
<p>A common way of determining the majority charge carriers of pristine and doped semiconducting polymers is to measure the sign of the Seebeck coefficient. However, a polarity change of the Seebeck coefficient has recently been observed to occur in highly doped polymers. Here, it is shown that the Seebeck coefficient inversion is the result of the density of states filling and opening of a hard Coulomb gap around the Fermi energy at high doping levels. Electrochemical n-doping is used to induce high carrier density (>1 charge/monomer) in the model system poly(benzimidazobenzophenanthroline) (BBL). By combining conductivity and Seebeck coefficient measurements with in situ electron paramagnetic resonance, UV–vis–NIR, Raman spectroelectrochemistry, density functional theory calculations, and kinetic Monte Carlo simulations, the formation of multiply charged species and the opening of a hard Coulomb gap in the density of states, which is responsible for the Seebeck coefficient inversion and drop in electrical conductivity, are uncovered. The findings provide a simple picture that clarifies the roles of energetic disorder and Coulomb interactions in highly doped polymers and have implications for the molecular design of next-generation conjugated polymers.</p>