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| 001 | 1010389 | ||
| 005 | 20240712112958.0 | ||
| 024 | 7 | _ | |a 10.1039/D3EE02027D |2 doi |
| 024 | 7 | _ | |a 1754-5692 |2 ISSN |
| 024 | 7 | _ | |a 1754-5706 |2 ISSN |
| 024 | 7 | _ | |a 10.34734/FZJ-2023-03033 |2 datacite_doi |
| 024 | 7 | _ | |a WOS:001044390000001 |2 WOS |
| 037 | _ | _ | |a FZJ-2023-03033 |
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| 100 | 1 | _ | |a Osterrieder, Tobias |0 P:(DE-Juel1)190775 |b 0 |e Corresponding author |u fzj |
| 245 | _ | _ | |a Autonomous optimization of an organic solar cell in a 4-dimensional parameter space |
| 260 | _ | _ | |a Cambridge |c 2023 |b RSC Publ. |
| 336 | 7 | _ | |a article |2 DRIVER |
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| 336 | 7 | _ | |a Journal Article |b journal |m journal |0 PUB:(DE-HGF)16 |s 1706015172_11472 |2 PUB:(DE-HGF) |
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| 336 | 7 | _ | |a Journal Article |0 0 |2 EndNote |
| 520 | _ | _ | |a Optimizing solution-processed organic solar cells is a complex and challenging task due to the vast parameter space in organic photovoltaics (OPV). Classical Edisonian or one-variable-at-a-time (OVAT) optimization approaches are laborious, time-consuming, and may not find the optimal parameter set in multidimensional design spaces. To tackle this problem, we demonstrate here for the first time artificial intelligence (AI) guided closed-loop autonomous optimization for fully functional organic solar cells. We empower our LineOne, an automated materials and device acceleration platform with a Bayesian Optimizer (BO) to enable autonomous operation for solving complex optimization problems without human interference. The system is able to fabricate and characterize complete OPV devices and navigate efficiently through the design space spanned by composition and processing parameters. In addition, a Gaussian Progress Regression (GPR) based early prediction model is employed to predict the efficiency of the cells from cheap proxy measurements, in our case, thin film absorption spectra, which are analyzed using a spectral model based on physical properties to generate microstructure features as input for the GPR. We demonstrate our generic and complete autonomous approach by optimizing composition and processing conditions of a ternary OPV system (PM6:Y12:PC70BM) in a four-dimensional parameter space. We identify the best parameter set for our system and obtain a precise objective function over the whole parameter space with a minimal number of samples. We demonstrate autonomous optimization of a complex opto-electronic device within 40 samples only, whereas an Edisonian approach would have required about 1000 samples. Even larger acceleration factors are expected for higher dimensional parameter spaces. This raises an important discussion on the necessity of autonomous platforms to accelerate Material science. |
| 536 | _ | _ | |a 1213 - Cell Design and Development (POF4-121) |0 G:(DE-HGF)POF4-1213 |c POF4-121 |f POF IV |x 0 |
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| 700 | 1 | _ | |a Schmitt, Frederik |0 P:(DE-Juel1)194317 |b 1 |
| 700 | 1 | _ | |a Lüer, Larry |0 P:(DE-HGF)0 |b 2 |e Corresponding author |
| 700 | 1 | _ | |a Wagner, Jerrit |0 P:(DE-HGF)0 |b 3 |
| 700 | 1 | _ | |a Heumüller, Thomas |0 P:(DE-Juel1)180635 |b 4 |u fzj |
| 700 | 1 | _ | |a Hauch, Jens |0 P:(DE-Juel1)177626 |b 5 |u fzj |
| 700 | 1 | _ | |a Brabec, Christoph J. |0 P:(DE-Juel1)176427 |b 6 |e Corresponding author |u fzj |
| 773 | _ | _ | |a 10.1039/D3EE02027D |g p. 10.1039.D3EE02027D |0 PERI:(DE-600)2439879-2 |n 9 |p 3984-3993 |t Energy & environmental science |v 16 |y 2023 |x 1754-5692 |
| 856 | 4 | _ | |y OpenAccess |u https://juser.fz-juelich.de/record/1010389/files/2305.08248.pdf |
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