Synthesis and Photophysics of 4-thienyl/furyl-triphenylamine main structural DSSC dyes with rhodanine-3-acetic acid and cyanoacetic acid as anchoring group

• Main Authors: Wun-Shuo Syu, 許紋碩
• Other Authors: Jinn-Hsuan Ho
• Format: Others
• Language: zh-TW
• Published: 2016
• Online Access: http://ndltd.ncl.edu.tw/handle/14138011350032514096

碩士 === 國立臺灣科技大學 === 化學工程系 === 104 === In this research, a series of organic sensitizers based on diphenyl (4-thiophen/furan-2-yl)aniline structure has been synthesized for dye-sensitized solar cells (DSSCs). We have prolonged the donor and used different anchoring groups as the acceptor in the Donor-π bridge-Acceptor system. This D-π-A system has the results in the increase of the maximum band to visible light region due to increasing intramolecular charge transfer from donor to acceptor and has better regulation of the electronic energy levels. Those eight organic dyes were synthesized by Suzuki coupling reaction and Knoevenagel condensation reaction. We used triphenylamine structure as donor, thiophene and furan as π bridge, cyanoacrylic acid and rhodanine-3-acetic acid as acceptors. Use nuclear magnetic resonance spectroscopy (NMR) and mass spectroscopy (MASS) to identify the structures and measure UV / Visible spectroscopy and Cyclic voltagram to discuss the photophyscial and electrochemical properties.