Using Self-Assembled Monolayer to Modify the Interface between ITO Electrode and Organic Active Layer in Organic Solar Cell

• Main Authors: Yin-fang Li, 黎尹芳
• Other Authors: Yian Tai
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/77003898519920883935

碩士 === 國立臺灣科技大學 === 化學工程系 === 97 === This research is focused on the modification of the surface of the ITO electrode with self-assembled monolayers (SAMs) in organic solar cell. The surface wettability and the work function of ITO are altered by passivation of SAMs with different functional groups, and the correlation between surface modification and photocurrent conversion efficiency (PCE) of the cell is investigated. The highest PCE of 2.56% can be reached by utilizing solar cell which the ITO electrode was modified by a mixture of SAM molecules with –CF3 and –CH3 functional groups. We conclude that the highest PCE is resulted from the mixture SAMs on ITO electrode which provides optimized morphology and structure of organic active layer above, the suitable workfunction which affect the electron transport of the device, and the best optical properties of the solar cell.