摘要： •We prepared high transmittance catalytic Pt nanoparticles on ITO/PEN by spray coating at an ambient temperature of 40°C.•The electrocatalytic behavior of 1.8 wt% nano-Pt CE shows high i0 and low Rct.•The Ti foil sub-module DSSC with 1.8 wt% nano-Pt counter electrode shows high conversion efficiency of 7.47%.•The MPN based sub-module DSSC with 1.8 wt% nano-Pt counter electrode maintains >90% after 2000hrs continuous one sun light soaking at 60°C. High transmittance Pt nanoparticles are prepared on indium tin oxide/polyethylene-naphthalate) (ITO/PEN) substrate at an ambient temperature of 40 0C and employed as counter electrode (CE) for dye sensitized solar cells (DSSCs). The deposited nano-Pt materials are characterized by scanning electron microscopy (SEM) and atomic force microscopy (AFM). Symmetrical cell fabricated with CE containing 1.8 wt% nano-Pt shows high exchange current density and low charge transfer resistance, as confirmed by Tafel polarization and electrochemical impedance spectroscopy (EIS) respectively. The Ti foil sub-module DSSC (10cm×10cm) having such CE exhibits a high conversion efficiency of 7.47% at an illumination of 100 mW/cm2. Further, the DSSC maintains >90% of the baseline efficiency after being exposed for more than 2000hrs in continuous one sun light soaking at 60°C. 出版者： Elsevier Ltd 出版日期： 2014-07-20 出處： Electrochimica acta, 2014-07, Vol.135, p.578-584 版權： 2014 Elsevier Ltd 識別號： ISSN: 0013-4686 識別號： EISSN: 1873-3859 識別號： DOI: 10.1016/j.electacta.2014.05.004
