Details

Autor(en) / Beteiligte

• Yue, Gentian
• Wu, Jihuai
• Xiao, Yaoming
• Huang, Miaoliang
• Lin, Jianming
• Fan, Leqing
• Lan, Zhang

Titel

Platinum/graphene hybrid film as a counter electrode for dye-sensitized solar cells

Ist Teil von

• Electrochimica acta, 2013-03, Vol.92, p.64-70

Ort / Verlag

Elsevier Ltd

Erscheinungsjahr

2013

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• ► A platinum/graphene film was prepared by using a facile electrochemical deposition method. ► A DSSC based on Pt/GN counter electrode achieved a conversion efficiency of 7.88%. ► The high efficiency is due to the synergistic effect combined platinum with graphene. A platinum nanoparticles/graphene nanosheets (PtNP/GN) film was prepared on rigid fluorine-doped tin oxide substrate by using a facile one step electrochemical deposition method, and the film was used as counter electrode for dye-sensitized solar cell (DSSC). The cyclic voltammetry, electrochemical impedance spectroscopy and Tafel curves measurements indicated that the PtNP/GN CE has higher conductivity and better electrocatalytic activity for I3−/I− redox reaction, lower charge transfer resistance on the electrolyte/electrode interface for I3−/I− redox reaction than that of Pt electrode, which is due to that the synergistic effect combined platinum nanoparticles with graphene nanosheet intrinsic characteristic. As a result, the DSSC based on the PtNP/GN counter electrode achieved a high power conversion efficiency of 7.88% under AM1.5 illumination of 100mWcm−2, which is higher 21.04% than that of the DSSC based on Pt electrode.