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Enhanced efficiency of dye-sensitized TiO2 solar cells (DSSC) by doping of metal ions
- Source :
-
Journal of Colloid & Interface Science . Mar2005, Vol. 283 Issue 2, p482-487. 6p. - Publication Year :
- 2005
-
Abstract
- Abstract: Doped TiO2 semiconductor powders were synthesized using Al and W as photovoltaic property-enhancing impurities. Al-doped TiO2 electrodes increased open-circuit voltage (), but reduced short-circuit current (). In contrast, W-doped TiO2 had an opposite effect. However, dye-sensitized solar cell efficiency fabricated with doped TiO2 was remarkably better than that of undoped TiO2. It seems that these phenomena were related to electrical surface-state modifications induced by metal-ion dopants. These modifications led to significant changes in powder aggregation, charge transfer kinetics, and dye adsorption characteristics. The highest efficiency was found by using (Al+W)-doped TiO2 nanopowders. [Copyright &y& Elsevier]
- Subjects :
- *TITANIUM dioxide
*SOLAR cells
*ION exchange (Chemistry)
*SURFACE chemistry
Subjects
Details
- Language :
- English
- ISSN :
- 00219797
- Volume :
- 283
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Journal of Colloid & Interface Science
- Publication Type :
- Academic Journal
- Accession number :
- 16512904
- Full Text :
- https://doi.org/10.1016/j.jcis.2004.09.009