Application of PVDF-HFP/mesoporous silica composite polymer electrolytes on dye-sensitized solar cell

• Main Authors: Yen-Chieh Lai, 賴彥榤
• Other Authors: Yui-Whei Chen-Yeng
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/5c6y6d

碩士 === 中原大學 === 化學研究所 === 98 === In this study, poly(vinylidenefluoride-co-hexafluoropropylene)(P(VDF-HFP)) were introduced into to liquid electrolyte to formed the gel electrolyte, and commercials silica (CS) and mesoporous silica (MS) powders were used, separately, as a filler to induced into the gel electrolyet. It is discussed that the properties of composite gel electrolyte and application of dye-sensitized solar cells. The morphologies and porosity of the silicas were characterized by SEM,TEM and BET measurements. The composite polymer electrolytes wrer investigated by morphologies, crystallinity, ionic conductivity, diffusion coefficient of tri-iodide and light-to-electrical-energy conversion efficiencies. It was found that presence of the CS were increased, the porosity of composite gel electrolytes were decreased, but P10MSx composite electrolytes were not changed obviously. And MS were disdrdered pore structure, electrolytes would penetrated into pores and increased ionic conductivity, diffusion coefficient of I3－. It exhibited an overall light-to-electrical-energy conversion efficiencies of 4.08 %, which is 37 % higher than the corresponding values of the DSSC fabricated with the electrolyte without MS additive, more then 9% higher than electrolyte under the same condition.