Understanding the correlation and balance between the miscibility and optoelectronic properties of polymer-fullerene solar cells

Zhang C, Langner S, Mumyatov AV, Anokhin DV, Min J, Perea JD, Gerasimov KL, Osvet A, Ivanov DA, Troshin P, Li N, Brabec C (2017)

Publication Language: English

Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2017

Journal

Publisher: Royal Society of Chemistry

Book Volume: 5

Pages Range: 17570-17579

Journal Issue: 33

DOI: 10.1039/c7ta03505e

Abstract

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 microstructural stability and unsatisfactory thermal stability owing to their 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 the 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 BHJ composites and their optoelectronic properties has to be carefully considered for future development and optimization of OPV solar cells based on BHJ composites. Miscibility is proposed in addition to crystallinity as a further design criterion for long lived and efficient solar cells. © 2017 The Royal Society of Chemistry.

Authors with CRIS profile

Additional Organisation(s)

Involved external institutions

Russian Academy of Sciences / Росси́йская акаде́мия нау́к (RAS) Russian Federation (RU) Lomonosov Moscow State University / Московский государственный университет имени М.В.Ломоносова Russian Federation (RU) Moscow Institute of Physics and Technology (MIPT, PhysTech) / Московский Физико-Технический институт (Физтех) Russian Federation (RU)

How to cite

APA:

Zhang, C., Langner, S., Mumyatov, A.V., Anokhin, D.V., Min, J., Perea, J.D.,... Brabec, C. (2017). Understanding the correlation and balance between the miscibility and optoelectronic properties of polymer-fullerene solar cells. Journal of Materials Chemistry A, 5(33), 17570-17579. https://doi.org/10.1039/c7ta03505e

MLA:

Zhang, Chaohong, et al. "Understanding the correlation and balance between the miscibility and optoelectronic properties of polymer-fullerene solar cells." Journal of Materials Chemistry A 5.33 (2017): 17570-17579.

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