Photoelectrochemical Properties of LaFeO3 Nanoparticles

Veronica Celorrio, Kieren A Bradley, Oliver J Weber, Simon R Hall, David J Fermín*

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

36 Citations (Scopus)

Abstract

The photoelectrochemical properties of LaFeO3 nanoparticles are discussed for the first time. Highly phase-pure LaFeO3 particles prepared by a novel ionic-liquid-based method are characterized by a (60±14) nm mean size and a band gap of (2.56±0.07) eV. Thin films deposited by screen printing exhibit photocurrent responses associated with hydrogen generation at potential up to 1 V more positive than the formal hydrogen potential. Analysis of the photocurrent responses as a function of photon flux and potential bias suggest that the hole-collection efficiency at the back contact is in competition with interfacial water oxidation.
Original languageEnglish
Pages (from-to)1667-1671
Number of pages5
JournalChemElectroChem
Volume1
Issue number10
Early online date2 Sep 2014
DOIs
Publication statusPublished - 14 Oct 2014

Keywords

  • Hydrogen evolution
  • LaFeO
  • Nanoparticles
  • Perovskite electrodes
  • Photoelectrochemistry

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