Study on efficiencies of dye sensitised solar cells with different morphologies of titania electrodes

• Main Authors: Wei-Te Lee, 李惟德
• Other Authors: Yao-Hui Huang
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/88931488785137914101

碩士 === 國立成功大學 === 化學工程學系碩博士班 === 96 === Nanoporous TiO2 layer is the core in Dye-Sensitised Solar Cell. In this research we use three different kinds of TiO2 particle to deposit nanoporous TiO2 film and measure their efficiencies under light illumination. The used particles are commercial available Degussa P25 TiO2, pure anatase structure particle with a similar particle size (35nm) to P25, and a smaller particle size (18nm) anatase particle. The cell made by 35 nm anatase particle gives a higher efficiency than P25 cell (6.5 % and 5.5 %) due to pure anatase structure. Cell with smaller particles have an efficiency of 6.0 %. We also try four different solvent in electrolyte. Acetonitrile has the lowest viscosity, and can give the best cell performance. Mixing TiO2 Rod in nanoparticle film can enhance the electron transport. The cell with a TiO2 mixture of 20 wt% rod and 80 wt% particles in a size of 18 nm can give the best efficiency of 7.6 %.