Journal
JOURNAL OF MATERIALS CHEMISTRY
Volume 22, Issue 33, Pages 17128-17132Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2jm32409a
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Funding
- Australian Research Council [DP0664112, DP0985744, FT0990583]
- Australian Institute of Nuclear Science and Engineering [AINGRA07031]
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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.
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