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Chem Commun (Camb). 2013 Oct 4;49(76):8477-9. doi: 10.1039/c3cc44264k.

Band-gap expansion of tungsten oxide quantum dots synthesized in sub-nano porous silica.

Author information

1
Tokyo Metropolitan Industrial Technology Research Institute, 2-4-10 Aomi, Koto-ku, Tokyo 135-0064, Japan.

Abstract

The band-gap energy tuning of WO3 quantum dots was realized in the range of 2.6 eV (bulk) to 3.7 eV (sub-nano) by precise size control around one nanometer. Newly synthesized sub-nanoporous silicas act as excellent templates. In addition, single-electron reduction of oxygen under UV irradiation is now achievable with WO3.

PMID:
23938767
DOI:
10.1039/c3cc44264k

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