Bo Shang, Kunpeng Yu, Hannah R M Margavio, Haozhou Yang, Yuanzuo Gao, Jindou Yang, Jing Li, M Li, Jinquan Shi, Mengxia Liu, Gregory N. Parsons, Jillian L Dempsey, Gerald J. Meyer, Thomas E. Mallouk, Hailiang Wang
. We further integrate the photocathode with a multijunction perovskite photovoltaic minimodule to afford a standalone solar fuel system, which demonstrates a light-to-methanol conversion efficiency of 0.8%, 32 times higher than the present record in light-to-alcohol conversion with an artificial leaf.