Understanding the impact of Bi stoichiometry towards optimised BiFeO<sub>3</sub> photocathodes: structure, morphology, defects and ferroelectricity
Haozhen Yuan, Subhajit Pal, Chloe Forrester, Qinrong He, Joe Briscoe
Abstract
Accurate control and measurement of stoichiometry of BiFeO 3 is achieved and linked to photoelectrochemical performance showing slight Bi excess leads to maximum photocurrent. This can be further enhanced through ferroelectric poling.
Topics & Concepts
FerroelectricityStoichiometryMaterials scienceMorphology (biology)OptoelectronicsNanotechnologyEngineering physicsChemistryPhysical chemistryPhysicsGeneticsDielectricBiologyMultiferroics and related materialsFerroelectric and Piezoelectric MaterialsGa2O3 and related materials