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1 October 2023 Binary organic solar cell with 19.31% enabled by non-monotonic intermediate state transition
Gang Li, Jiehao Fu, Patrick W. K. Fong
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Proceedings Volume PC12660, Organic, Hybrid, and Perovskite Photovoltaics XXIV; PC126600D (2023) https://doi.org/10.1117/12.2677324
Event: SPIE Organic Photonics + Electronics, 2023, San Diego, California, United States
Abstract
Non-radiative recombination loss (Eloss,nr or ΔE3) suppression and performance boosting are in the center of OSCs research. Herein, we developed a novel non-monotonic intermediate state manipulation (NM-ISM) strategy for state-of-the-art NFA OSCs by employing 1,3,5-trichlorobenzene (TCB) as crystallization regulator, which optimizes the film crystallization process, regulates the self-organization of bulk-heterojunction (BHJ) in a non-monotonic manner, i.e., first enhancing and then relaxing the molecular aggregation. As a result, we have achieved efficient OSCs with reduced Eloss,nr. In PM6:BTP-eC9 OSC system, the ISM strategy successfully offers a record binary OSC PCE of 19.31% (18.93% certified) with very low Eloss,nr of 0.190 eV. Nature Communicaitons, in press
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Gang Li, Jiehao Fu, and Patrick W. K. Fong "Binary organic solar cell with 19.31% enabled by non-monotonic intermediate state transition", Proc. SPIE PC12660, Organic, Hybrid, and Perovskite Photovoltaics XXIV, PC126600D (1 October 2023); https://doi.org/10.1117/12.2677324
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KEYWORDS
Binary data
Organic photovoltaics
Solar cells
Crystallization
Electronics engineering
Engineering
Lithium
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