| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 179653 | Electrochemistry Communications | 2012 | 4 Pages |
A dye-free photoelectrochemical (PEC) solar cell based on BiVO4 oxide film was developed. Without a bias, a high incident photo-to-current conversion efficiency (IPCE) of 43% was obtained and the solar energy conversion efficiency of the cell was 14 times higher than the record efficiency of Fe2O3 PEC solar cells. Ultra-fast transient absorption spectroscopy was utilized to investigate the mechanism of the different photoelectric performances. The results revealed that there was a longer lifetime of photogenerated carriers in BiVO4 than that in Fe2O3. It was helpful to develop other suitable photoelectrode materials for dye-free PEC solar cells.
Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► A dye-free PEC solar cell based on BiVO4 oxide film. ► An IPCE of 43%. ► The efficiency is 14 times higher than the record efficiency of Fe2O3 solar cells. ► Ultra-fast transient absorption spectroscopy was used to investigate the mechanism. ► There is a longer lifetime of photogenerated carriers in BiVO4 than that in Fe2O3.
