| 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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Havenith, Remco W. A.
University of Groningen
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (22/22 displayed)
- 2024Lattice Dynamics and Thermoelectric Properties of 2D LiAlTe 2 , LiGaTe 2 , and LiInTe 2 Monolayerscitations
- 2024Lattice Dynamics and Thermoelectric Properties of 2D LiAlTe2, LiGaTe2, and LiInTe2 Monolayerscitations
- 2023Spark Discharge Doping—Achieving Unprecedented Control over Aggregate Fraction and Backbone Ordering in Poly(3‐hexylthiophene) Solutionscitations
- 2022Strategies for Enhancing the Dielectric Constant of Organic Materialscitations
- 2022Strategies for Enhancing the Dielectric Constant of Organic Materialscitations
- 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
- 2020N-type organic thermoelectrics:demonstration of ZT > 0.3citations
- 2020How Ethylene Glycol Chains Enhance the Dielectric Constant of Organic Semiconductors:Molecular Origin and Frequency Dependencecitations
- 2020How Ethylene Glycol Chains Enhance the Dielectric Constant of Organic Semiconductorscitations
- 2020N-type organic thermoelectricscitations
- 2019Coverage-Controlled Polymorphism of H-Bonded Networks on Au(111)citations
- 2015Strategy for Enhancing the Dielectric Constant of Organic Semiconductors Without Sacrificing Charge Carrier Mobility and Solubilitycitations
- 2015Strategy for Enhancing the Dielectric Constant of Organic Semiconductors Without Sacrificing Charge Carrier Mobility and Solubility
- 2014Strategy for Enhancing the Electric Permittivity of Organic Semiconductors
- 2014Stabilizing cations in the backbones of conjugated polymerscitations
- 2014Stabilizing cations in the backbones of conjugated polymerscitations
- 2013Molecular flexibility and structural instabilities in crystalline L-methioninecitations
- 2007On the structure of cross-conjugated 2,3-diphenylbutadienecitations
- 2002Ring current and electron delocalisation in an all-metal cluster, Al42-citations
- 2000Infinite, undulating chains of intermolecularly hydrogen bonded (E,E)-2,2-dimethylcyclohexane-1,3-dione dioximes in the solid state. A single crystal X-ray, charge density distribution and spectroscopic studycitations
- 2000Infinite, undulating chains of intermolecularly hydrogen bonded (E,E)-2,2-dimethylcyclohexane-1,3-dione dioximes in the solid state. A single crystal X-ray, charge density distribution and spectroscopic studycitations
Places of action
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book
Strategy for Enhancing the Dielectric Constant of Organic Semiconductors Without Sacrificing Charge Carrier Mobility and Solubility
Abstract
Current organic semiconductors for organic photovoltaics (OPV) have relative dielectric constants (relative permittivities, epsilon(r)) in the range of 2-4. As a consequence, Coulombically bound electron-hole pairs (excitons) are produced upon absorption of light, giving rise to limited power conversion efficiencies. We introduce a strategy to enhance epsilon(r) of well-known donors and acceptors without breaking conjugation, degrading charge carrier mobility or altering the transport gap. The ability of ethylene glycol (EG) repeating units to rapidly reorient their dipoles with the charge redistributions in the environment was proven via density functional theory (DFT) calculations. Fullerene derivatives functionalized with triethylene glycol side chains were studied for the enhancement of epsilon(r) together with poly(p-phenylene vinylene) and diketo-pyrrolopyrrole based polymers functionalized with similar side chains. The polymers showed a doubling of epsilon(r) with respect to their reference polymers in identical backbone. Fullerene derivatives presented enhancements up to 6 compared with phenyl-C-61-butyric acid methyl ester (PCBM) as the reference. Importantly, the applied modifications did not affect the mobility of electrons and holes and provided excellent solubility in common organic solvents. ; L.J.A.K. acknowledges support by a grant from STW/NWO (VENI 11166). The work by S.T. and F.J.B. is part of the research program of the Foundation for Fundamental Research on Matter (FOM), which is part of the Netherlands Organization for Scientific Research (NWO). This is a publication by the FOM Focus Group 'Next Generation Organic Photovoltaics', participating in the Dutch Institute for Fundamental Energy Research (DIFFER).