Exploring a new Molecular Electron Acceptors for Dye-Sensitized Solar Cells by Employing Tricyanothenylbenzoic Acid

Among azo compounds are derivatives with D-π-A (donor-π-bridge-acceptor) structures, which are ICT (intramolecular charge-transfer) chromophores. These compounds' excellent photophysical characteristics are due to extensive -delocalized systems between the electron donor-acceptor groups in the azo bond. This research centered on design and synthesis of an enhance dye sensitized solar cell using tricyanovinyl-based acceptors: a photovoltaic performance study. In order to enhance charge separation and electron injection efficiency, the TCBA moiety a potent electron-withdrawing unit with conjugated variety of donor motifs using a configuration of D-π-bridge-D-A (donor-π- bridge-donor-acceptor) system. The synthesized acceptors optical, electrochemical, and photovoltaic characteristics were thoroughly examined. With a power conversion efficiency (PCE) of 6.18% under AM 1.5G illumination, the top-performing TCBA based dye demonstrated a notable improvement above traditional acceptors. The potential of TCBA as an adjustable acceptor is core in the creation of effective DSSC dyes as demonstrated by this study.