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Improving photoelectrical performance of dye sensitized solar cells by doping Y2O3:Tb3+ nanorods

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Abstract

Y2O3:Tb3+ nanorods have been successfully synthesized via a hydrothermal method and then introduced into the photoanode of dye-sensitized solar cell. As a p-type dopant, Y2O3:Tb3+ enhances the Fermi level of TiO2 film. Meanwhile, it also improves the short-circuit current density and the light-to-electric energy conversion efficiency by acting as a luminescence medium which can convert ultraviolet light to visible light efficiently. As a result, the conversion efficiency can reach 7.942 % when the doping amount is 4 wt%. The light-to-electric conversion efficiency is increased by a factor of 2.051 compared to that of a cell without Y2O3:Tb3+ doping. The mechanism has been discussed as well.

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Acknowledgments

This work was supported by the National Natural Science Foundation of China (NSFC#90922028).

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Authors and Affiliations

  1. Engineering Research Center of Environment-Friendly Functional Materials of the Ministry of Education, Key Laboratory for Functional Materials of Fujian Higher Education, Institute of Material Physical Chemistry, Huaqiao University, Quanzhou, 362021, China

    Shangyou Chen, Jianming Lin & Jihuai Wu

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  1. Shangyou Chen
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  2. Jianming Lin
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  3. Jihuai Wu
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Correspondence to Jianming Lin.

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Chen, S., Lin, J. & Wu, J. Improving photoelectrical performance of dye sensitized solar cells by doping Y2O3:Tb3+ nanorods. J Mater Sci: Mater Electron 25, 2060–2065 (2014). https://doi.org/10.1007/s10854-014-1840-3

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  • DOI: https://doi.org/10.1007/s10854-014-1840-3

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