4.8 Article

Bandgap Tunability in Sb-Alloyed BiVO4 Quaternary Oxides as Visible Light Absorbers for Solar Fuel Applications

Journal

ADVANCED MATERIALS
Volume 27, Issue 42, Pages 6733-+

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201502361

Keywords

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Funding

  1. Office of Science of the US Department of Energy [DE-SC0004993, DE-AC02-05CH11231]
  2. Office of Science, Office of Basic Energy Sciences, of the US Department of Energy [DE-AC02-05CH11231]
  3. DOE Office of Biological and Environmental Research
  4. NIH [P41GM103393]

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The challenge of fine compositional tuning and microstructure control in complex oxides is overcome by developing a general two-step synthetic approach. Antimony-alloyed bismuth vanadate, which is identified as a novel light absorber for solar fuel applications, is prepared in a wide compositional range. The bandgap of this quaternary oxide linearly decreases with the Sb content, in agreement with first-principles calculations.

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