| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 607905 | Journal of Colloid and Interface Science | 2013 | 4 Pages |
Anatase TiO2 nanosheets with exposed reactive {0 0 1} facets were prepared in the presence of HF. The photovoltaic properties of NaOH-washed anatase TiO2 nanosheets with exposed {0 0 1} facets were investigated by assembling the TiO2 as photoanodes in dye-sensitized solar cells (DSSCs). A decreased overall efficiency and increased recombination rate was observed in comparison with the H2O-washed counterpart by both dark current scan and open-circuit voltage decay scan, and XPS confirmed that the deleterious effect of sodium ions is responsible for this reduced efficiency in DSSCs.
Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (93 K)Download as PowerPoint slideHighlights► Na+ containing TiO2 nanosheets with exposed {0 0 1} facets were synthesized. ► Increased charge recombination was revealed in Na+ containing TiO2 nanosheets. ► XPS confirmed the presence of Na+ is responsible for the reduced efficiency in DSSCs.
