Fabrication of Solid-State Electrolytes by Solidification of Polymers for Highly Efficient Solid-State Dye Sensitized Solar Cells

• Main Authors: NesiaObadja, 歐寧欣
• Other Authors: Yuh-Lang Lee
• Format: Others
• Language: en_US
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/22931987576454689374

碩士 === 國立成功大學 === 化學工程學系碩博士班 === 100 === Blending polymer P(AN-VA)/PEO and P(AN-VA)/P(VdF-HFP) were employed as solidification agents to prepare solid-state electrolytes for dye-sensitized solar cells (DSSCs). The main purpose of using blending system is to reduce the crytallinity of the polymer, which is supposed to be advantages to the charge transport. These two systems showed good performance on DSSCs applications due to enhancement of ionic conductivity and overall conversion efficiency compared to single polymer system. However, P(AN-VA)/P(VdF-HFP) can achieve a higher conductivity (3.67 x 10-3 S/cm) compared to that obtain by the P(AN-VA)/PEO system (3.04 x 10-3 S/cm). Therefore, this study was focused more on the P(AN-VA)/P(VdF-HFP) blending sytem. To increase the performance of the cells, ethylene carbonate (EC) and TiO2 were introduced as plasticizer and nanofiller, respectively, of the electrolyte system. Finally, to evaluate the performance of the DSSCs, stability test was carried out at room temperature. Almost all cells could maintain over 90% of their original efficiencies after 300 hours.