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Ni1 xPtx (x=0 0.08) Films as the Photocathode of Dye-Sensitized Solar Cells with High Efficiency

Peng, Shengjie and Shi, Jifu and Pei, Juan and Liang, Yanliang and Cheng, Fangyi and Liang, Jing and Chen, Jun (2010) Ni1 xPtx (x=0 0.08) Films as the Photocathode of Dye-Sensitized Solar Cells with High Efficiency. Nano Research, 2 (6). pp. 484-492.

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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 refl ectance, 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 fi ll factor (FF) of 66.4%, corresponding to an overall conversion effi ciency 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.

Item Type:Article
Uncontrolled Keywords: Ni1 xPtx (x=0 0.08) films - chemical plating - nanoparticles - photocathode - dye-sensitized solar cells
Subjects:Material Science > Functional and hybrid materials
Technology > Manufacturing processes for nanotechnology
Technology > Nanotechnology and energy applications
ID Code:8712
Deposited By:Lesley Tobin
Deposited On:26 Mar 2010 12:36
Last Modified:26 Mar 2010 12:39

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