Wang, F., Nakabayashi, M., Nandal, V., Grötzner, G., Shoji, R., Iwaizumi, H., Vequizo, J. J. M., Shibata, N., Kanome, N., Streibel, V., Li, W., Matsuzaki, H., Seki, K., Sharp, I. D., Takata, T., Hisatomi, T., Domen, K. (2026). Single-crystalline BaxSr1-xTaO2N solid-solution photocatalyst with low defect concentrations for solar-driven water splitting. Nature Communications. https://doi.org/10.1038/s41467-026-68848-9