Jump to main content
Jump to site search

Issue 4, 2014
Previous Article Next Article

Al-doped ZnO inverse opal networks as efficient electron collectors in BiVO4 photoanodes for solar water oxidation

Author affiliations

Abstract

The short diffusion length of photogenerated charge carriers limits the performance of photoelectrodes for solar water splitting. To reduce the distance between where the charges are generated and the location they are scavenged, a conductive Al-doped ZnO inverse opal network is introduced into a BiVO4 photoanode. The conductive inverse opal network serves as an electron collector for the BiVO4 film, which suffers from poor electron transport. The combined heterostructure provides a photocurrent of 1.5 mA cm−2 at 1.23 V vs. RHE, which is threefold higher than a BiVO4 photoanode without any conducting inverse opal network. The significantly enhanced photocurrent produced without intentional doping or oxygen-evolving catalysts, indicates the importance of charge transport and collection in photoelectrodes. Our design has the potential to be applied to other photoelectrochemical systems to improve charge collection and solar energy conversion efficiency.

Graphical abstract: Al-doped ZnO inverse opal networks as efficient electron collectors in BiVO4 photoanodes for solar water oxidation

Back to tab navigation

Supplementary files

Publication details

The article was received on 12 Dec 2013, accepted on 24 Feb 2014 and first published on 24 Feb 2014


Article type: Communication
DOI: 10.1039/C3EE44031A
Citation: Energy Environ. Sci., 2014,7, 1402-1408
  • Open access: Creative Commons BY license
  •   Request permissions

    Al-doped ZnO inverse opal networks as efficient electron collectors in BiVO4 photoanodes for solar water oxidation

    L. Zhang, E. Reisner and J. J. Baumberg, Energy Environ. Sci., 2014, 7, 1402
    DOI: 10.1039/C3EE44031A

    This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material.

    Reproduced material should be attributed as follows:

    • For reproduction of material from NJC:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
    • For reproduction of material from PCCP:
      [Original citation] - Published by the PCCP Owner Societies.
    • For reproduction of material from PPS:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
    • For reproduction of material from all other RSC journals:
      [Original citation] - Published by The Royal Society of Chemistry.

    Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.

Search articles by author

Spotlight

Advertisements