| 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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Champagne, Benoît
University of Namur
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2019The Fingerprint of Aromaticity and Molecular Topology on the Photophysical Properties of Octaphyrinscitations
- 2017Assessing density functional theory approaches for predicting the structure and relative energy of salicylideneaniline molecular switches in the solid statecitations
- 2015Fluorination as an effective tool to increase the open-circuit voltage and charge carrier mobility of organic solar cells based on poly(cyclopenta[2,1-b:3,4-b′]dithiophene-alt-quinoxaline) copolymerscitations
- 2015N-acyl-dithieno[3,2-b2',3'-d]pyrrole-based low bandgap copolymers affording improved open-circuit voltages and efficiencies in polymer solar cellscitations
- 2014Enhanced open-circuit voltage in polymer solar cells by dithieno[3,2-b:2′,3′-d]pyrrole N-acylationcitations
- 2014Enhanced open-circuit voltage in polymer solar cells by dithieno[3,2-b:2 ',3 '-d]pyrrole N-acylationcitations
- 2008Theoretical study on second hyperpolarizabilities of singlet diradical square planar nickel complexes involving o-semiquinonato type ligandscitations
- 2004Multichromophoric dendrimers as single-photon sources:A single-molecule studycitations
- 2003Analytic ab initio determination of the elastic modulus in stereoregular polymers:Analytical integral derivatives, long-range effects, implementation, and examplescitations
- 2002Integral algorithm and density matrix integration scheme for ab initio band structure calculations on polymeric systemscitations
- 2000Unrestricted Hartree-Fock band structure calculations for polymers:Application to a cross-talk systemcitations
Places of action
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book
Enhanced open-circuit voltage in polymer solar cells by dithieno[3,2-b:2 ',3 '-d]pyrrole N-acylation
Abstract
A series of low bandgap copolymers composed of N-acyl-substituted dithieno[3,2-b:2′,3′-d]pyrroles (DTPs) as the electron rich donor constituents (with various alkyl side chain patterns) combined with different electron deficient acceptor building blocks are developed for polymer solar cell applications. Due to the introduction of the N-acyl substituents, the HOMO energy levels of the push–pull copolymers decrease as compared to the N-alkyl-DTP analogues, resulting in an increased open-circuit voltage (Voc) and hence solar cell performance. For an N-acyl-DTP-alt-thieno[3,4-c]pyrrole-4,6-dione (PDTP-TPD) copolymer a bulk heterojunction device with a Voc up to 0.80 V and a power conversion efficiency of 4.0% is obtained, the highest value for DTP-based polymer materials to date. Moreover, by implementation of a conjugated polyelectrolyte cathode interlayer the short-circuit current noticeably increases, enhancing the solar cell efficiency to 5.8%. ; The authors gratefully acknowledge financial support from Hasselt University and the IWT (Flemish government agency for Innovation by Science and Technology). The authors further thank BELSPO for funding the IAP 7/05 network. The reported activity is partly supported by the project ORGANEXT (EMR.INT4-1.2.-2009-04/054), selected in the frame of the operational program INTERREG IV-A Euregio Maas-Rijn. The FWO (Research Foundation Flanders) and SIM (Strategisch Initiatief Materialen vzw) are acknowledged for the M.ERA-NET project "RADESOL" (GA.013.13N) and the program "Solution based Processing of Photovoltaic Modules" (SoPPoM, GA no. 2010-01, including the projects OPvTECH and absCIGS), respectively. V.L. thanks the F.R.S.-FNRS for his Research Associate position. The calculations were performed on the computing facilities of the Consortium des Equipements de Calcul Intensif (CECI), in particular those of the Plateforme Technologique de Calcul Intensif (PTCI) installed in the University of Namur, for which the authors acknowledge financial support of the FNRS-FRFC ...