Efficient Water Splitting via a Heteroepitaxial BiVO₄ Photoelectrode Decorated with Co‐Pi Catalysts

Co-Pi cat: The surface of a BiVO4 film obtained by heteroepitaxy, displaying a morphology akin to interconnected walls, is decorated with Co-Pi catalysts in order to obtain an efficient water-splitting catalyst. Qualitative analysis confirms an increased efficiency of photon use, attributable to the suppression of both bulk and surface recombination owing to the combined effects of heteroepitaxy and surface modification, respectively. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.