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Get Free AccessThe optoelectronic properties of our benchmark nanocrystalline anatase TiO2 photoanode were modified by means of aliovalent doping with Nb5+. Even for a low doping level, the charge collection efficiency can be noticeably improved as a result of a higher electron lifetime when using the heteroleptic Ru(+II) C101 dye. Particularly of interest, while this was only possible by adding additives in the electrolyte, the doping concentration allows tuning of the energetic of the trap state distribution; parameter particularly crucial for the injection rate and charge collection efficiency. This improvement brings the power conversion efficiency of a 7 μm thick transparent photoanode to 8.7% while intensifying the electrode’s transparency.
Aravind Kumar Chandiran, Frédéric Sauvage, Montse Casas‐Cabanas, Pascal Comte, Shaik M. Zakeeruddin, Michael Graetzel (2010). Doping a TiO<sub>2</sub> Photoanode with Nb<sup>5+</sup> to Enhance Transparency and Charge Collection Efficiency in Dye-Sensitized Solar Cells. , 114(37), DOI: https://doi.org/10.1021/jp106058c.
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Type
Article
Year
2010
Authors
6
Datasets
0
Total Files
0
Language
en
DOI
https://doi.org/10.1021/jp106058c
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