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| 001 | 1042670 | ||
| 005 | 20250610131449.0 | ||
| 024 | 7 | _ | |a 10.1002/aenm.202403479 |2 doi |
| 024 | 7 | _ | |a 1614-6832 |2 ISSN |
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| 037 | _ | _ | |a FZJ-2025-02639 |
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| 100 | 1 | _ | |a Haffner-Schirmer, Julian |0 P:(DE-Juel1)207892 |b 0 |e Corresponding author |u fzj |
| 245 | _ | _ | |a A High Throughput Platform to Minimize Voltage and Fill Factor Losses |
| 260 | _ | _ | |a Weinheim |c 2025 |b Wiley-VCH |
| 336 | 7 | _ | |a article |2 DRIVER |
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| 520 | _ | _ | |a Organic photovoltaics (OPV) now can exceed 20% power conversion efficiency in single junction solar cells. To close the remaining gap to competing technologies, both fill factor and open-circuit voltage must be optimized. The Langevin reduction factor is a well-known concept that measures the degree to which charge extraction is favored over charge recombination. It is therefore ideally suited as an optimization target in high-throughput workflows; however, its evaluation so far requires expert interaction. Here, an integrated high-throughput workflow is presented, able to obtain the Langevin reduction factor within a few seconds with high accuracy without human intervention and thus suited for autonomous experiments. This is achieved by combining evidence from UV–vis spectra, current–voltage curves, and a novel implementation of microsecond transient absorption kinetics allowing, for the first time, the intrinsic determination of charge absorption cross-sections, which is crucial to reporting stationary charge densities. The method is demonstrated by varying the donor:acceptor ratio of the high performance OPV blend PM6:Y12. The high reproducibility of the method allows to find a strictly exponential relationship between the PM6 exciton energy and the Langevin reduction factor. |
| 536 | _ | _ | |a 1214 - Modules, stability, performance and specific applications (POF4-121) |0 G:(DE-HGF)POF4-1214 |c POF4-121 |f POF IV |x 0 |
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| 700 | 1 | _ | |a Le Corre, Vincent Marc |0 P:(DE-Juel1)201923 |b 1 |
| 700 | 1 | _ | |a Forberich, Karen |0 P:(DE-Juel1)178784 |b 2 |
| 700 | 1 | _ | |a Egelhaaf, Hans Joachim |b 3 |
| 700 | 1 | _ | |a Osterrieder, Tobias |0 P:(DE-Juel1)190775 |b 4 |
| 700 | 1 | _ | |a Wortmann, Jonas |0 P:(DE-Juel1)196016 |b 5 |
| 700 | 1 | _ | |a Liu, Chao |0 P:(DE-Juel1)201377 |b 6 |
| 700 | 1 | _ | |a Weitz, Paul |0 0000-0002-2259-6736 |b 7 |
| 700 | 1 | _ | |a Heumüller, Thomas |0 P:(DE-Juel1)180635 |b 8 |
| 700 | 1 | _ | |a Bornschlegl, Andreas Josef |0 0000-0001-9992-5449 |b 9 |
| 700 | 1 | _ | |a Wachsmuth, Josua |0 0000-0003-1213-7410 |b 10 |
| 700 | 1 | _ | |a Distler, Andreas |0 0000-0003-3500-2180 |b 11 |
| 700 | 1 | _ | |a Wagner, Michael |0 P:(DE-Juel1)191164 |b 12 |
| 700 | 1 | _ | |a Peng, Zijian |0 0000-0003-3678-6538 |b 13 |
| 700 | 1 | _ | |a Lüer, Larry |b 14 |e Corresponding author |
| 700 | 1 | _ | |a Brabec, Christoph Joseph |0 P:(DE-Juel1)176427 |b 15 |e Corresponding author |
| 773 | _ | _ | |a 10.1002/aenm.202403479 |g Vol. 15, no. 17, p. 2403479 |0 PERI:(DE-600)2594556-7 |n 17 |p 2403479 |t Advanced energy materials |v 15 |y 2025 |x 1614-6832 |
| 856 | 4 | _ | |u https://juser.fz-juelich.de/record/1042670/files/Advanced%20Energy%20Materials%20-%202025%20-%20Haffner%E2%80%90Schirmer%20-%20A%20High%20Throughput%20Platform%20to%20Minimize%20Voltage%20and%20Fill%20Factor%20Losses.pdf |y OpenAccess |
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