Abstract
A one-step method of preparing photoelectrochemically active nanostructured BiVO4 films is reported based on thermolysis (500 °C in air) of a polyethylene glycol (PEG300) “paint-on” precursor solution containing Bi3+ (as nitrate) and VO43− (as the metavanadate ammonium salt). Films are formed directly on tin-doped indium oxide (ITO) substrates and characterised by electron microscopy (scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS)), X-ray diffraction, Raman spectroscopy, and photoelectrochemistry. The nanocrystalline film exhibited typically up to 52 % incident photon to current efficiency (IPCE) at 1.0 V vs. saturated calomel electrode (SCE) in aqueous 0.5 M Na2SO4 with oxalate, strongly enhancing photocurrents.
Original language | English |
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Pages (from-to) | 31-35 |
Number of pages | 5 |
Journal | Journal of Solid State Electrochemistry |
Volume | 19 |
Issue number | 1 |
Early online date | 22 May 2014 |
DOIs | |
Publication status | Published - Jan 2015 |
Keywords
- Nanostructure
- Oxygen evolution
- Photoanode
- Solar energy
- Vanadium oxide
- Water splitting
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MC2- X-ray diffraction (XRD)
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Raman confocal microscope RENISHAM INVIA
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