Perovskite synthesizability using graph neural networks

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Perovskite is an important material type in geophysics and for technologically important applications. However, the number of synthetic perovskites remains relatively small. To accelerate the high-throughput discovery of perovskites, we propose a graph neural network model to assess their synthesizability. Our trained model shows a promising 0.957 out-of-sample true positive rate, significantly improving over empirical rule-based methods. Further validation is established by demonstrating that a significant portion of the virtual crystals that are predicted to be synthesizable have already been indeed synthesized in literature, and those with the lowest synthesizability scores have not been reported. While previous empirical strategies are mainly applicable to metal oxides, our model is general and capable of predicting the synthesizability across all classes of perovskites, including chalcogenide, halide, and hydride perovskites, as well as anti-perovskites. We apply the method to identify synthesizable perovskite candidates for two potential applications, the Li-rich ion conductors and metal halide optical materials that can be tested experimentally.
Publisher
NATURE PORTFOLIO
Issue Date
2022-04
Language
English
Article Type
Article
Citation

NPJ COMPUTATIONAL MATERIALS, v.8, no.1

ISSN
2057-3960
DOI
10.1038/s41524-022-00757-z
URI
http://hdl.handle.net/10203/296453
Appears in Collection
CBE-Journal Papers(저널논문)
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