ChemInform Abstract: Synthesis of Organic Dyes with Linkers Between 9,9‐Dimethylfluorenyl Terminal and α‐Cyanoacrylic Acid Anchor, Effect of the Linkers on UV‐Vis Absorption Spectra, and Photovoltaic Properties in Dye‐Sensitized Solar Cells.

Abstract

. -Metal-free organic dyes having different linker between the 9,9-dimethylfluorenyl terminal group and the α-cyanoacrylic acid anchor are synthesized. Compound (II) shows the longest λ max value in the UV-Vis absorptions spectrum, better incident monochromatic photon-to-current conversion efficiency, highest short circuit photocurrent density, and the highest overall conversion efficiency.