| 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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Jin, Sung Ho
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2018Impact of Topology of Alkoxy Side Chain in Alkoxyphenylthiophene Subsituted Benzodithiophene Based 2D Conjugated Low Bandgap Polymers on Photophysical and Photovoltaic Propertiescitations
- 2018Substituent position engineering of phosphine oxide functionalized triazine-based cathode interfacial materials for flexible organic and perovskite solar cellscitations
- 2017The Impact of Sequential Fluorination of Pi-Conjugated Polymers on Charge Generation in All-Polymer Solar Cellscitations
- 2016New bulky side chain substituted benzodithiophene based 2D-conjugated polymers for optoelectronic applicationscitations
- 2016Alkoxyphenyl-thiophene, -selenophene and -furan substituted benzodithiophene based 2D pi-conjugated polymers for polymer solar cells and effect of chalcogen on optoelectronic propertiescitations
- 2014New alkylselenyl substituted benzodithiophene-based solution-processable 2D pi-conjugated polymers for bulk heterojunction polymer solar cell applicationscitations
Places of action
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article
New bulky side chain substituted benzodithiophene based 2D-conjugated polymers for optoelectronic applications
Abstract
<p>In order to explore the effect of bulky side chain substituted benzodithiophene (BDT) based polymers on optoelectronic properties, here we have designed and synthesized two new 2D conjugated donor–acceptor (D–A) copolymers P1 and P2 via Stille coupling of 2,3-bis(4-(2-ethylhexyloxy)phenyl)thiophene (BAPT) substituted BDT as (D) unit and 1,3-di(2-bromothien-5-yl)-5-(2-ethylhexyl)thieno[3,4-c]pyrrole-4,6-dione (TPD) or 2,5-ethylhexyl-3,6-bis(5-bromothiophen-2-yl)pyrrolo[3,4-c]-pyrrole-1,4-dione (DPP) as (A) units. The new polymers P1 and P2 showed broad absorption windows with vibronic shoulders indicate π–π stacking of polymer backbones. In addition P1 and P2 showed deep highest occupied molecular orbital (HOMO) energy levels of −5.50, −5.35 eV, respectively which allow delivering high open-circuit voltages (V<sub>oc</sub>) in bulk heterojunction polymer solar cells (BHJ PSCs). The donor photon energy loss (E<sub>g</sub>–eV<sub>oc</sub>) of P1 and P2 are 0.87 and 0.57 which is comparable to the previous reports. BHJ PSCs were fabricated with P1 and P2, and they displayed high V<sub>oc</sub> of 0.99 and 0.78 V, respectively, with maximum power conversion efficiency of 2.05 and 0.96 % in additive free BHJ PSCs. The polymer field effect transistor mobilities of P1 and P2 are 8.0 × 10<sup>−3</sup>, 9.2 × 10<sup>−5</sup> cm<sup>2</sup>/V s, respectively.</p>