Subhrajit Konwar, Diksha Singh, Karol Strzałkowski, Mohamad Najmi Bin Masri, Muhd Zu Azhan Yahya, Markus Diantoro, Serguei V. Savilov, Pramod K. Singh
An ionic liquid (IL) 1-ethyl, 2-methyl imidazolium thiocyanate incorporated biopolymer system is reported in this communication for applications in dual energy devices, i.e., electric double-layer capacitors (EDLCs) and dye-sensitized solar cells (DSSCs). The solution caste method has been used to synthesize ionic-liquid-incorporated biopolymer electrolyte films. The IL mixed biopolymer electrolytes achieve high ionic conductivity up to the order of 10−3 S/cm with good thermal stability above 250 °C. Electrical, structural, and optical studies of these IL-doped biopolymer electrolyte films are presented in detail. The performance of EDLCs was evaluated using low-frequency electrochemical impedance spectroscopy, cyclic voltammetry, and constant current charge–discharge, while that of DSSCs was assessed using J–V characteristics. The EDLC cells exhibited a high specific capacitance of 200 F/gram, while DSSCs delivered 1.53% efficiency under sun conditions. © 2023 by the authors.
Center for Solar Cells & Renewable Energy, Department of Physics, Sharda University, Greater Noida, 201310, India; Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, Torun, 87-100, Poland; Faculty of Bioengineering and Technology, Universiti Malaysia Kelantan, Kota Bharu, 16100, Malaysia; Faculty of Defence Science and Technology, Universiti Pertahanan Nasional Malaysia (UPNM), Kuala Lumpur, 57000, Malaysia; Department of Physics, Faculty of Mathematics and Natural Science, Universitas Negeri Malang, Semarang 5, Malang, 65145, Indonesia; Department of Chemistry, Lomonosov Moscow State University, 1–3 Leninskiye Gory, Moscow, 119991, Russian Federation