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J Colloid Interface Sci. 2013 Feb 1;391:70-3. doi: 10.1016/j.jcis.2012.10.007. Epub 2012 Oct 13.

Effect of sodium on photovoltaic properties of dye-sensitized solar cells assembled with anatase TiO2 nanosheets with exposed {001} facets.

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ARC Centre of Excellence for Functional Nanomaterials, School of Chemical Engineering, The University of Queensland, St. Lucia, Brisbane, QLD 4072, Australia.


Anatase TiO(2) nanosheets with exposed reactive {001} facets were prepared in the presence of HF. The photovoltaic properties of NaOH-washed anatase TiO(2) nanosheets with exposed {001} facets were investigated by assembling the TiO(2) as photoanodes in dye-sensitized solar cells (DSSCs). A decreased overall efficiency and increased recombination rate was observed in comparison with the H(2)O-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.


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