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Abstract
Herein, we report the synthesis of a novel, tetrazine-based conjugated polymer. Tetrazines have the benefit of being strong electron acceptors, while little steric hindrance is imposed on the flanking thiophene rings. Conversion of a suitably substituted nitrile precursor led to 3,6-bis(5-bromo-4-(2-octyldodecyl)thiophen-2-yl)-1,2,4,5-tetrazine (2OD-TTz). Palladium-catalyzed copolymerization of 2OD-TTz with a bithiophene monomer yielded an alternating tetrazine–quaterthiophene copolymer (PTz4T-2OD). The polymer PTz4T-2OD showed an optical band gap of 1.8 eV, a deep HOMO energy level of − 5.58 eV and good solubility. In combination with the non-fullerene acceptor ITIC-F, solar cells with power conversion efficiencies of up to 2.6% were obtained.
Originalsprache | englisch |
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Seiten (von - bis) | 10065–10076 |
Seitenumfang | 12 |
Fachzeitschrift | Journal of Materials Science |
Jahrgang | 54 |
Ausgabenummer | 13 |
DOIs | |
Publikationsstatus | Veröffentlicht - 2019 |
ASJC Scopus subject areas
- Allgemeine Materialwissenschaften
- Werkstoffmechanik
- Maschinenbau
Fields of Expertise
- Advanced Materials Science
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- 1 Abgeschlossen
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SolaBat - Solarzelle trifft Batterie: Realisierung eines Hybrid-Energiesystems
Hanzu, I. (Teilnehmer (Co-Investigator))
1/03/16 → 28/02/19
Projekt: Forschungsprojekt