Zn-doped TiO2 electrodes in dye-sensitized solar cells for enhanced photocurrent
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Date
2012-07-20
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Publisher
Royal Society of Chemistry
Abstract
Porous nanocrystalline Zn/TiO2 materials were synthesized employing agarose gel as a template, achieving a maximum Zn-doping concentration of around 2 at.%. Low Zn-doping concentrations (e.g. <1 at.%) improved the photocurrent of the dye-sensitized solar cell when these materials were applied as the working electrode, as n-type doping favors electron transportation. Compared to the efficiency of the undoped sample, 6.7%, the 0.5 at.% sample showed a much higher efficiency of 7.6%. Further doping decreases the performance of the device as it introduces deficiencies that act as electron–hole recombination centers. © 2012 The Royal Society of Chemistry
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Keywords
Electrodes, Solar cells, Materials handling, Nanocrystals, Photoelectrochemical cells, Titanium oxides, Zinc, Nanomaterials
Citation
Huang, F., Li, Q., Thorogood, G. J., Cheng, Y.-B., & Caruso, R. A. (2012). Zn-doped TiO 2 electrodes in dye-sensitized solar cells for enhanced photocurrent. Journal of Materials Chemistry, 22(33), 17128-17132. doi:10.1039/C2JM32409A