Chinese Science Bulletin

, Volume 56, Issue 1, pp 96–101

Application of upconversion luminescence in dye-sensitized solar cells

  • GuiXiang Xie
  • JianMing Lin
  • JiHuai Wu
  • Zhang Lan
  • QingHua Li
  • YaoMing Xiao
  • GenTian Yue
  • HaiFeng Yue
  • MiaoLiang Huang
Open Access
Article Materials Science

DOI: 10.1007/s11434-010-4115-2

Cite this article as:
Xie, G., Lin, J., Wu, J. et al. Chin. Sci. Bull. (2011) 56: 96. doi:10.1007/s11434-010-4115-2

Abstract

An upconversion luminescence powder TiO2:(Er3+, Yb3+) is prepared by a hydrothermal method and used to fabricate dye-sensitized solar cell (DSSC). The TiO2:(Er3+, Yb3+) powder undergoes upconversion luminescence, converting infrared light which the dye can not absorb into visible light with wavelengths of 510–700 nm which the dye can absorb, increasing the photocurrent of the DSSC. TiO2:(Er3+, Yb3+) also acts as a p-type dopant, heightening the Fermi level of the oxide film, which increases the photovoltage of the DSSC. The best performance of the DSSC is found when the ratio of TiO2/luminescence powder is 1/3 in the luminescence layer. Under simulated solar irradiation of 100 mW cm−2 (AM 1.5), the DSSC containing TiO2:(Er3+, Yb3+) doping achieves a light-to-electricity energy conversion efficiency of 7.28% compared with 6.41% for the undoped DSSC.

Keywords

dye-sensitized solar cell upconversion luminescence p-type doping 
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Copyright information

© The Author(s) 2011

Open Access This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.

Authors and Affiliations

  • GuiXiang Xie
    • 1
  • JianMing Lin
    • 1
  • JiHuai Wu
    • 1
  • Zhang Lan
    • 1
  • QingHua Li
    • 1
  • YaoMing Xiao
    • 1
  • GenTian Yue
    • 1
  • HaiFeng Yue
    • 1
  • MiaoLiang Huang
    • 1
  1. 1.Engineering Research Center of Environment-Friendly Functional Materials, Ministry of Education, China; The Key Laboratory for Functional Materials of Fujian Higher Education, China; Institute of Material Physical ChemistryHuaqiao UniversityQuanzhouChina

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