Charge carrier trapping, recombination and transfer in hematite (α-Fe2O3) water splitting photoanodes

By M. Barroso, Stephanie R. Pendlebury, Alexander J. Cowan, J. Durrant. 2013

444 citations recorded by the source corpus.

Hematite is currently considered one of the most promising materials for the conversion and storage of solar energy via the photoelectrolysis of water. Whilst there has been extensive research and much progress in the development of hematite structures with enhanced photoelectrochemical (PEC) activity, relatively limited information has been available until recently concerning the dynamics of photogenerated charge carriers in hematite and their impact upon the efficiency of water photoelectrolysis. In this perspective we present an overview of our recent studies of the dynamics of photoinduced charge carrier processes in hematite, derived primarily from transient absorption spectroscopy of nanostructured photoanodes. The relationship between PEC activity and transient measurements are discussed in terms of a phenomenological model which rationalizes the observations and in particular the impact of external potential bias on the relative rates of charge carrier trapping, recombination and interfacial transfer in hematite photoanodes for water oxidation.

Subfields: Environmental Chemistry, Renewable Energy, Sustainability and the Environment

View Paper: https://www.semanticscholar.org/paper/c496f72b87e9d66b22adbbf5c87d4ff7047acf7e

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Renewable Energy, Sustainability and the Environment

  1. Aron Walsh
  2. J. Durrant

Citations in the corpus