| Téléchargement | - Voir le manuscrit accepté : The Preparation of a Sterically Hindered s-Tetrazine and Its Conjugated Polymers (PDF, 6.5 Mio)
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| DOI | Trouver le DOI : https://doi.org/10.1002/pola.24774 |
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| Auteur | Rechercher : Ding, Jianfu1; Rechercher : Li, Zhao1; Rechercher : Cui, Zhe1; Rechercher : Robertson, Gilles P.1; Rechercher : Song, Naiheng1; Rechercher : Du, Xiaomei1; Rechercher : Scoles, Ludmila1 |
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| Affiliation | - Conseil national de recherches du Canada. Institut de technologie des procédés chimiques et de l'environnement du CNRC
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| Format | Texte, Article |
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| Sujet | s-tetrazine; steric hindrance; conjugated polymer; narrow band gap; bulk heterojunction; solar cell |
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| Résumé | We demonstrated, for the first time, that dithienyl-s-tetrazine (TTz) with hexyl group at the 3-position of thiophene rings can be prepared using a modified sulfur-assisted Pinner synthesis. Although the hexyl group creates large steric hindrance to this ring formation reaction, and the reaction under a traditional reaction condition only produces trace amount of the target product, the yield of this reaction under a modified reaction condition using anhydrous hydrazine at 68 ˚C can reach 65%. Two new copolymers of TTz and cyclepentaditiophene (CPDT) with hexyl or 2-ethylhexyl groups attached to its 4-position have been prepared. The polymer films show a broad light absorption attributing to the large distribution of effective conjugating length of polymer chain in the film due to the low steric hindrance for the rotation of the monomer units. The polymers also show a narrow band gap and a deep HOMO level, which are desirable for generating an efficient light absorption and a larger open circuit voltage (Voc) of the resulting solar cell devices. |
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| Date de publication | 2011-05-05 |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro du CNRC | NRCC 52824 |
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| Numéro NPARC | 18215932 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 41b1bdf5-258b-421f-b136-ae6b1f097b1d |
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| Enregistrement créé | 2011-07-06 |
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| Enregistrement modifié | 2020-04-21 |
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