Synthesis, characterization and spectroscopic properties of chiral perylene 3, 4 -dicarboxylic- 9, 10- ((R) - (+) - 1 - Phenylethyl) - carboximide for solar cell applications

Perylene chromophoric derivatives are versatile compounds for many applications in various fields. Excellent optical properties such as high extinction coefficients and strong fluorescence combined with ease in electron accepting ability are most notable advantages of perylene derivatives. Herein, the project focused on the synthesis of different kinds of perylene dyes, a chiral perylene diimide, a chiral perylene monoimide, and a perylene dicarboxylic acid chiral monoimide, named, N,N′-bis((R)-(+)-1-phenylethyl)-3,4,9,10-perylenebis(dicarboximide) (PDI), N-((R)-(+)-1-phenylethyl)-3,4,9,10-perylenetetracarboxylic-3,4-anhydride-9,10-imide (PMI), chiral perylene-3,4-dicarboxylic -9,10-((R)-1-phenylethyl)carboximide (CPMI), respectively. The final perylene derivative CPMI was synthesized in three consecutive reactions. CPMI was especially designed to be applicable in photovoltaic cells such as dye sensitized solar cells. The synthesized perylene derivatives are characterized in detail by investigating their optical, photophysical, and thermal properties using the techniques FTIR, UV-vis, Fluorescence, DSC, TGA and elemental analysis. They exhibited interesting optical properties, high solubilities, high molar absorption coefficients, and thermal stabilities. Keywords: perylene diimide, perylene monoimide, carboxylic acid monoimde, chiral, extinction coefficient.