Application of pi-Extended Ferrocene with Varied Anchoring Groups as Photosensitizers in TiO2-Based Dye-Sensitized Solar Cells (DSSCs)

作者：Chauhan Ratna; Trivedi Manoj; Bahadur Lal; Kumar Abhinav^*

来源：Chemistry-An Asian Journal, 2011, 6(6): 1525-1532.

DOI：10.1002/asia.201000845

• cyclic voltammetry
• density functional calculations
• electrochemistry
• ferrocene
• photosensitization

Two new compounds, FcCH=NC6H4COOH (1) and FcCH=NCH2CH2OH (2) (Fc=C5H4FeC5H5), have been synthesized and characterized by elemental analyses, IR and (HNMR)-H-1 spectroscopy, and ESI-MS. Attempt has been made to explain their quasi-reversible redox behavior evidenced by cyclic voltammetry using density functional theory (DFT) calculations. Light-harvesting properties of both the compounds and also the starting material, FcCHO (3), have been studied using these compounds as photosensitizers in TiO2-based dye-sensitized solar cells having either a propylene carbonate-based electrolyte or ionic liquid electrolyte, namely, 1-propyl-3-methyl imidazolium iodide (PMII). Long-term stability of the photocurrent output of the cell using compound 1 as photosensitizer has been monitored periodically over 1400 h.

• 出版日期2011-6-6