Proceedings of MATSUS Spring 2024 Conference (MATSUS24)
Publication date: 18th December 2023
In recent years, dye-sensitized solar cells (DSSCs) have received much interest as low-cost photovoltaic devices compared to traditional silicon solar cells1. Recently, the development of these prospective low-cost solar cells focuses on finding efficient dyes and charge-transport materials for tandem DSSCs, which contain two photoelectrodes rather than one. At the moment, however, the efficiency is limited by the photocathode2. Modifying the p-DSSC conversion efficiency would have a major impact on the molecular level performance of tandem solar cells. This project focus on the organic synthesis, characterization, and photophysical properties of a series of dyes based on N-heterocyclic donors particularly triazole dye derivatives. The aim of this project is to increase electron density around the anchoring group3. In this work, all compounds are characterized by UV-Vis, IR spectroscopy, 1H NMR, 13C NMR, and HR-Mass spectrometry. The performances of the solar cell will be compared with that of the reference dye P1, with iodine as an electrolyte, and with [6,6]-phenyl-C61-butyric acid methyl ester (PCBM, a commercial C60 derivative used in organic photovoltaics). The performance of a dye-sensitized solar cell will be evaluated by incident photon to current conversion efficiency (IPCE, %), short circuit current (JSC, mA cm−2), open-circuit voltage (VOC, V), maximum power output [Pmax], overall efficiency [η, %], and fill factor [FF].
L.Alqahtani would like to thank my supervisor Prof. Elizabeth Gibson for her excellent guidance and for giving me the opportunity to complete this project. L.Alqahtani would like to thank King Faisal University for funding and support.
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