Novel 6-amino-5-cyano [2,2′/2,3′/2,4′-bipyridin]-4-yl-triphenylamine dyes anchored on cadmium sulphide nanowires: Optical, electrochemical and photovoltaic applications

Abstract

This article explores the green synthesis methodology for a novel class of electron-rich 6-amino-5-cyano [2,2′/2,3′/2,4′-bipyridin]-4-yl-triphenylamine compounds. Employing microwave-assisted techniques and environmentally benign solvents, we have significantly reduced the environmental footprint of the synthetic process. The synthesized compounds exhibit promising optical and electrochemical properties, making them potential candidates as sensitizers for dye-sensitized solar cells (DSSCs). The density functional theory (DFT) calculations and EQE measurements corroborate the experimental findings, suggesting the potential of these compounds for DSSC application by anchoring on one-dimensional CdS nanowires. This study underscores the importance of green chemistry principles in developing sustainable and environmentally friendly materials for energy applications.

Graphical abstract

This work enhances the use of microwaves in green chemistry to synthesize novel substances while reducing the use of dangerous solvents and energy consumption. These compounds exhibit promising qualities as dye-sensitized solar cell (DSSC) sensitizers due to their remarkable optical and electrochemical characteristics. The outcomes support DFT and EQE studies.