Nano Research

, Volume 2, Issue 6, pp 484–492 | Cite as

Ni1−xPtx (x=0–0.08) films as the photocathode of dye-sensitized solar cells with high efficiency

  • Shengjie Peng
  • Jifu Shi
  • Juan Pei
  • Yanliang Liang
  • Fangyi Cheng
  • Jing Liang
  • Jun Chen
Open Access
Research Article

Abstract

Films of Ni1−xPtx (x=0, 0.02, 0.04, 0.06, and 0.08) have been prepared on fluorine-doped tin oxide-coated (FTO) glass substrates by a chemical plating method and used as the photocathode for dye-sensitized solar cells (DSCs). The Ni0.94Pt0.06 film consisted of nanoparticles with a size of 4–6 nm and a Pt loading of 5.13 μg/cm2. The Ni0.94Pt0.06 photocathode exhibited high catalytic performance toward triiodide reduction, high light reflectance, and low charge-transfer resistance. The DSC assembled with the Ni0.94Pt0.06 photocathode gave a short-circuit photocurrent density (Jsc) of 16.79 mA/cm2, an open-circuit photovoltage (Voc) of 736 mV, and a fill factor (FF) of 66.4%, corresponding to an overall conversion efficiency of 8.21% under standard AM 1.5 irradiation (100 mW/cm2), which is higher than that for the DSC with a pure Pt photocathode obtained by conventional thermal decomposition. Furthermore, the DSC based on the Ni0.94Pt0.06 photocathode showed good stability. The results indicate that Ni0.94Pt0.06 films are promising lowcost and high-performance photocathodes for use in DSCs.

Keywords

Ni1−xPtx films chemical plating nanoparticles photocathode dye-sensitized solar cells 

Supplementary material

12274_2009_9044_MOESM1_ESM.pdf (699 kb)
Supplementary material, approximately 700 KB.

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Copyright information

© Tsinghua University Press and Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • Shengjie Peng
    • 1
  • Jifu Shi
    • 1
  • Juan Pei
    • 1
  • Yanliang Liang
    • 1
  • Fangyi Cheng
    • 1
  • Jing Liang
    • 1
  • Jun Chen
    • 1
  1. 1.Institute of New Energy Material Chemistry, Key Laboratory of Energy Material Chemistry, and Engineering Research Center of High-Energy Storage and Conversion, Ministry of EducationNankai UniversityTianjinChina

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