Dang Xuan Long, M. Alvien Ghifari, Kantapa Yolthida, Ikah N.P. Permanasari, Jongin Hong
In this work, we report on the performance enhancement of liquid-electrolyte dye-sensitized solar cells (DSSCs) achieved by the judicious selection of additives. These include copper(I) iodide (CuI), 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F4TCNQ), bis(pentamethylcyclopentadienyl) cobalt(II) (CoCp2), and poly(vinylidene fluoride-trifluoroehtylene) (P(VDF-TrFE)). Our investigation centers on the influence of these additives on photovoltaic parameters, with a particular emphasis on their ability to modulate ionic conductivity and the electrochemical behavior within iodine/iodide-based electrolytes. We discovered that each additive markedly increases the open-circuit voltage (Voc), short-circuit current density (Jsc), and thus, the power-conversion-efficiency (PCE) of the DSSCs. These results indicate that the strategic use of additive engineering can be powerful approach to systematically enhance the energy conversion efficiency of DSSCs. © 2024
Department of Smart Cities, Chung-Ang University, 84 Heukseok-ro, Seoul, Dongjak-gu, 06974, South Korea; Faculty of Science, Institut Teknologi Sumatera, Jalan Terusan Ryacudu, Lampung, Lampung Selatan, 35365, Indonesia; Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Seoul, Dongjak-gu, 06974, South Korea