Dye Sensitized Solar Cells Based on Hydrazonoyl Synthetic Dyes

Abstract

A group of chemical sensitizers of two hydrazonoyl based derivatives were synthesized. These derivatives contain a good  system for efficient light absorption and oxide sensitization. Precursor structure I was reacted with 2,6-diaminopyridine, 2-aminobenzoic acid, 4-aminobenzoic acid, 2-aminopyridine, 2,6-dinitrophenylhydrazine, and diphenylamine. The other precursor, structure (II), was reacted with 2-aminobenzoic acid, 2-amino-3-methyl, and 2-amino-4-methylpyridine. A total of 9 dyes were prepared and evaluated as sensitizers for dye-sensitized solar cells (DSSCs). Full computational calculations using DFT B3LYP 6-31+G were carried out for evaluation of band edge and band gap energies of all compounds. The absorption spectra of these dyes as well as cyclic voltammetry were used for the measurement of the HOMO, LUMO, and energy band gaps. The photovoltaic performance of the fabricated DSSCs was measured in different solutions comprising water, alcohol, phenylhydrazine, and dinitrophenylhydazine.

Affordable dye sensitizer by waste

“…This value is considerably higher than those of the DSSC sensitized by other synthetics dyes or natural dyes. Synthetics dyes from hydrazonoyl and their derivatives reported obtain the efficiency of DSSC of 0.00009-0.003% [24]. Natural dyes from five plants Amaranthus caudatus, Bougainvillea spectabilis, Delonix regia, Nerium oleander and Spathodea campanulata obtained the highest efficiency of DSSC reached 0.610% from Amaranthus caudatus [25].…”

Bandgap tunability from synergistic mixture of Pandanus amaryllifolius and Curcuma longa as photo-absorber candidates

“…titanium dioxide; TiO2), a cathode (a metal counter electrode) and an electrolyte for dye regeneration (Will, 2013). Few factors need to be considered to ensure high solar performance of DSSC, including the choice of photosensitizer dye used (Abdel-Latif et al, 2016). It is necessary to further improve the solar cell performance and in the same time, to reduce the cost of DSSCs for successful commercialization.…”