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Understanding the correlation and balance between miscibility and optoelectronic properties for polymer-fullerene solar cellsстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Chaohong Zhang, stefan langner, Mumyatov Alexander V., Anokhin Denis A., Jie Min, Jose Dario Perea, Gerasimov Kirill L., Andres Osvet, Dimitri Ivanov, Pavel Troshin, Ning Li, Brabec Christoph J.
- Журнал: Journal of Materials Chemistry A
- Год издания: 2017
- Издательство: Royal Society of Chemistry
- Местоположение издательства: United Kingdom
- DOI: 10.1039/C7TA03505E
- Аннотация: Organic photovoltaics is one of the most promising technologies for sustainable green energy supply. Because of their high electron affinity and superior electron-transporting ability, fullerene-based materials are deemed as very strong electron-accepting components in organic solar cells. However, the most widely used fullerene-based acceptors, such as phenyl-C61-butyric acid methyl ester, exhibit limited microstructure stability and unsatisfying thermal stability owing to the insufficient compatibility with organic donors. Here, we in-depth investigate the carrier dynamics along with structural evolution and analyze the acceptor loadings in optimized bulk-heterojunction (BHJ) solar cells as a function of the polymer-fullerene miscibility. The polymer-fullerene miscibility has more influential effects than crystallinity of single components on the optimized acceptor:donor ratio in polymer-fullerene solar cells. The findings demonstrated in this work suggest that the balance between the miscibility of the BHJ composites and their optoelectronic properties has to be carefully considered for future development and optimization of OPV solar cells based on the BHJ composites. Miscibility is proposed in addition to crystallinity as a further design criterion for long lived and efficient solar cells.
- Добавил в систему: Иванов Дмитрий Анатольевич