11.2% Efficiency all-polymer solar cells with high open-circuit voltage

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Bibliographic Details
Title: 11.2% Efficiency all-polymer solar cells with high open-circuit voltage
Authors: Yongfang Li, Thomas P. Russell, Jin Fang, Xia Guo, Feng Liu, Jingnan Wu, Maojie Zhang, Wenyan Su, Lei Zhu, Yuan Meng, Zhi-Guo Zhang
Source: Meng, Y, Wu, J, Guo, X, Su, W, Zhu, L, Fang, J, Zhang, Z G, Liu, F, Zhang, M, Russell, T P & Li, Y 2019, ' 11.2% Efficiency all-polymer solar cells with high open-circuit voltage ', Science China Chemistry . https://doi.org/10.1007/s11426-019-9466-6
Publisher Information: Springer Science and Business Media LLC, 2019.
Publication Year: 2019
Subject Terms: wide bandgap polymer, 02 engineering and technology, all-polymer solar cells, fluorine substitution, 0210 nano-technology, 01 natural sciences, 7. Clean energy, polymer acceptor, power conversion efficiency, 0104 chemical sciences
Description: Herein, we fabricated all-polymer solar cells (all-PSCs) based on a fluorinated wide-bandgap p-type conjugated polymer PM6 as the donor, and a narrow bandgap n-type conjugated polymer PZ1 as the acceptor. In addition to the complementary absorption and matching energy levels, the optimized blend films possess high cystallinity, predominantly face-on stacking, and a suitable phase separated morphology. With this active layer, the devices exhibited a high V oc of 0.96 V, a superior J sc of 17.1 mA cm−2, a fine fill factor (FF) of 68.2%, and thus an excellent power conversion efficiency (PCE) of 11.2%, which is the highest value reported to date for single-junction all-PSCs. Furthermore, the devices showed good storage stability. After 80 d of storage in the N2-filled glovebox, the PCE still remained over 90% of the original value. Large-area devices (1.1 cm2) also demonstrated an outstanding performance with a PCE of 9.2%, among the highest values for the reported large-area all-PSCs. These results indicate that the PM6 : PZ1 blend is a promising candidate for scale-up production of large area high-performance all-PSCs.
Document Type: Article
Language: English
ISSN: 1869-1870
1674-7291
DOI: 10.1007/s11426-019-9466-6
Access URL: https://link.springer.com/article/10.1007/s11426-019-9466-6
https://sciengine.com/doi/10.1007/s11426-019-9466-6
https://engine.scichina.com/publisher/scp/journal/SCC/62/7/10.1007/s11426-019-9466-6?slug=fulltext
http://www.scopus.com/inward/record.url?scp=85064071028&partnerID=8YFLogxK
https://vbn.aau.dk/da/publications/4522936b-0292-4b78-bd2b-85342f2806f4
https://doi.org/10.1007/s11426-019-9466-6
Rights: Springer TDM
Accession Number: edsair.doi.dedup.....e6092f12b04ec81d951e52d592b77f3b
Database: OpenAIRE
Description
Abstract:Herein, we fabricated all-polymer solar cells (all-PSCs) based on a fluorinated wide-bandgap p-type conjugated polymer PM6 as the donor, and a narrow bandgap n-type conjugated polymer PZ1 as the acceptor. In addition to the complementary absorption and matching energy levels, the optimized blend films possess high cystallinity, predominantly face-on stacking, and a suitable phase separated morphology. With this active layer, the devices exhibited a high V oc of 0.96 V, a superior J sc of 17.1 mA cm−2, a fine fill factor (FF) of 68.2%, and thus an excellent power conversion efficiency (PCE) of 11.2%, which is the highest value reported to date for single-junction all-PSCs. Furthermore, the devices showed good storage stability. After 80 d of storage in the N2-filled glovebox, the PCE still remained over 90% of the original value. Large-area devices (1.1 cm2) also demonstrated an outstanding performance with a PCE of 9.2%, among the highest values for the reported large-area all-PSCs. These results indicate that the PM6 : PZ1 blend is a promising candidate for scale-up production of large area high-performance all-PSCs.
ISSN:18691870
16747291
DOI:10.1007/s11426-019-9466-6