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. 2015 Nov;27(42):6733-40.
doi: 10.1002/adma.201502361. Epub 2015 Sep 28.

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

Anna Loiudice  1   2 , Jie Ma  1   2 , Walter S Drisdell  1   2 , Tracy M Mattox  3 , Jason K Cooper  1   2 , Timothy Thao  1 , Cinzia Giannini  4 , Junko Yano  1   2 , Lin-Wang Wang  1   2 , Ian D Sharp  1   5 , Raffaella Buonsanti  1   2
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Bandgap Tunability in Sb-Alloyed BiVO₄ Quaternary Oxides as Visible Light Absorbers for Solar Fuel Applications

Anna Loiudice et al. Adv Mater. 2015 Nov.

Abstract

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.

Keywords: colloidal synthesis; light absorbers; materials discovery; quaternary oxides; solar energy conversion.

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