Study on Preparation of Tio2 Film by Screen Printing Machine for Dye Sensitized Solar Cells

• Main Authors: YE, JIN-HONG, 葉晉宏
• Other Authors: MEEN, TEEN-HANG
• Format: Others
• Language: zh-TW
• Published: 2019
• Online Access: http://ndltd.ncl.edu.tw/handle/59y9d2

碩士 === 國立虎尾科技大學 === 電子工程系碩士班 === 107 === This work studies the preparation of the working electrode of the dye-sensitized solar cells. The thickness of the electrode of the working electrode, the uniformity of the coating layer, the surface condition of the electrode will affect the photoelectric conversion efficiency of the dye-sensitized solar cells. The effects of the screen printing parameters used for the preparation of the working electrode and the multilayer working electrode structure on the photoelectric conversion efficiency of the dye-sensitized solar cells were investigated. The screen printing technique requires a relatively high viscosity coating paste, compared to the coating paste for doctor blading method. This study used P25 and P100 TiO2 nanoparticle to prepare a suitable coating and printing paste. The uniformity of the coating layer is formed using the screen printing technique with the squeegee coating speed of 11 mm s-1, and we can also stack the multilayer TiO2 nanostructure to achieve a better thickness of the coating. The efficiency was as high as 4.77% when P100 was doped with 0.5g, and the efficiency was 4.86% when the amount of ethylcellulose was 0.25wt%.