Manipulating the Fate of Charge Carriers with Tungsten Concentration: Enhancing Photoelectrochemical Water Oxidation of Bi 2 WO 6 (Small 35/2021)

Photoelectrocatalysis The cover image, highlighting the work by Fatwa Firdaus Abdi, Yun Hau Ng, and co-workers in article number 2102023, shows the photoelectrochemical water oxidation on an illuminated plate-like bismuth tungstate photoanode thin film. The tungsten concentration is modulated to tune the photoexcited charge transportation of the thin film. This “self-doped” of tungsten leads to the higher carrier density and improved conductivity for oxygen evolution from water.