Fig. 3: The collective charge transfer pathway steered by IEFs.
From: Unveiling the charge transfer dynamics steered by built-in electric fields in BiOBr photocatalysts
a Schematic illustration showing the construction of IEFs by photo-deposition of CoOx co-catalysts on the surface of BiOBr platelets, where a variety of metal species were employed as the probe to track the transfer pathway of electrons. TEM images and EDS maps show the photo-deposition of dual co-catalysts in the order of CoOx co-catalysts and Ag (b), Pt (c), or Au (d) nanoparticles. These samples are termed as CoOx-metal (Ag, Pt, or Au)/BiOBr. e Statistical histograms of the distances from the centers of metal nanoparticles to the BiOBr platelet edges, including the CoOx-Ag, CoOx-Pt, and CoOx-Au pairs. Source data are provided as a Source Data file.
