Dynamic charge collecting mechanisms of cobalt phosphate on hematite photoanodes studied by photoinduced absorption spectroscopy
Dongfeng Li, Ruifang Wei, Heng Yin, Hemin Zhang, Xiuli Wang, Can Li
Abstract
Loaded CoPi on Fe 2 O 3 facilitates spatial charge separation by dynamic hole storage mechanisms, in which CoPi receives trapped holes in surface states at low potential and directly captures holes in the valence band at high potential.
Topics & Concepts
HematiteMaterials scienceAbsorption spectroscopyCobaltValence (chemistry)Valence bandSpectroscopyChemical physicsBand gapChemistryOptoelectronicsOpticsPhysicsMetallurgyOrganic chemistryQuantum mechanicsIron oxide chemistry and applicationsClay minerals and soil interactionsMine drainage and remediation techniques