4.5 Article

Photoelectrochemical Properties of LaFeO3 Nanoparticles

期刊

CHEMELECTROCHEM
卷 1, 期 10, 页码 1667-1671

出版社

WILEY-V C H VERLAG GMBH
DOI: 10.1002/celc.201402192

关键词

hydrogen evolution; LaFeO3; nanoparticles; perovskite electrodes; photoelectrochemistry

资金

  1. UK National Academy though the Newton International Fellows program
  2. Engineering and Physical Sciences Research Council [1096615, 1421449] Funding Source: researchfish

向作者/读者索取更多资源

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 1V 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.

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