دورية أكاديمية
Ordered π-conjugated polymer backbone in amorphous blend for high efficiency nonfullerene organic photovoltaics
| العنوان: | Ordered π-conjugated polymer backbone in amorphous blend for high efficiency nonfullerene organic photovoltaics |
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| المؤلفون: | Masahiko Saito, Hiroya Yamada, Kakaraparthi Kranthiraja, Jihun Jeon, Hyung Do Kim, Tsubasa Mikie, Akinori Saeki, Hideo Ohkita, Itaru Osaka |
| المصدر: | Communications Materials, Vol 4, Iss 1, Pp 1-10 (2023) |
| بيانات النشر: | Nature Portfolio, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Materials of engineering and construction. Mechanics of materials |
| مصطلحات موضوعية: | Materials of engineering and construction. Mechanics of materials, TA401-492 |
| الوصف: | Abstract In π-conjugated polymers, the amorphous region absent from π–π stacking order typically limits polymer functions compared to the crystalline region with high π–π stacking order. Here, we show that a benzodithiophene–thiazolothiazole copolymer containing tripropylsilyl groups (PSTz2) has a greater coplanar backbone structure when the π–π stacking order is absent, such as in solution and in a film blended with a nonfullerene acceptor, than when it is present in a neat film. The excitons and charge carriers generated in PSTz2 are more highly delocalized in the blend film than in the neat film, presumably through the backbone. The unconventional structural feature of PSTz2 shows higher photovoltaic performance in nonfullerene-based cells compared to its alkyl-functionalized counterpart. Our results show that it is possible to develop π-conjugated polymers that perform well in amorphous blends due to the ordered backbone structure. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2662-4443 28483588 |
| Relation: | https://doaj.org/toc/2662-4443 |
| DOI: | 10.1038/s43246-023-00395-y |
| URL الوصول: | https://doaj.org/article/f5a307bd5e28483588c5b5d8d1f11143 |
| رقم الأكسشن: | edsdoj.f5a307bd5e28483588c5b5d8d1f11143 |
| قاعدة البيانات: | Directory of Open Access Journals |
Find this article in full text from Springer Verlag. 
Full Text Finder | تدمد: | 26624443 28483588 |
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| DOI: | 10.1038/s43246-023-00395-y |