Dye-sensitized solar cells on TiO2 photoelectrodes sensitized with rhodamine

摘要

Rhodamine-6G derivative Rhd, synthesized by microwave-assisted condensation of rhodamine hydrazide and 2-Amino-3-formylchromone, and its metal complexes were investigated using ultraviolet-visible (UV-vis) and fluorescence spectroscopy. Dye-sensitized solar cells (DSSCs) were fabricated using Rhd and its metal complexes with aluminum (Al3+) and chromium ions (Cr3+). Current-density (I-V) characteristics and Electrochemical Impedance Spectroscopy (EIS) measurements of the rhodamine dyes were conducted to determine their solar-to-electric power efficiencies and electron lifetimes. The solar cell sensitized with Rhd and Cr3+ had the highest solar to electric power efficiency at 0.16 %.