Journal
NANO LETTERS
Volume 11, Issue 1, Pages 203-208Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl1034573
Keywords
WO3; nanowire; tungsten trioxide; photoelectrochemical
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Funding
- China Scholarship Council
- Department of Energy [DE-FG36-08GO18074]
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Photocorrosion stable WO3 nanowire arrays are synthesized by a solvothermal technique on fluorine-doped tin oxide coated glass. WO3 morphologies of hexagonal and monoclinic structure, ranging from nanowire to nanoflake arrays, are tailored by adjusting solution composition with growth along the (001) direction. Photoelectrochemical measurements of illustrative films show incident photon-to-current conversion efficiencies higher than 60% at 400 mn with a photocurrent of 1.43 mA/cm(2) under AM 1.5G illumination. Our solvothermal film growth technique offers an exciting opportunity for growth of one-dimensional metal oxide nanostructures with practical application in photoelectrochemical energy conversion.
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