The Role of C-dots/(MnO₂)_x (x = 0, 2, 4, mM) on Enhancing The Ion Transport in Poly (Ethylene Oxide) Based Solid Polymer Electrolytes: The Optical and Electrical Characteristics

In this work, solid polymer electrolytes (SPE) based poly (ethylene oxide) (PEO) have been prepared with carbon dots (C-dots) and C-dots/manganese oxide or C-dots/(MnO₂)_x (x = 0, 2, 4 mM) addition. C-dots synthesized by low-temperature heating oven using cassava peels as a carbon source. Furthermore, C-dots/(MnO₂)_x prepared with C-dots solution as media for reducing potassium permanganate (KMnO₄) into MnO₂. C-dots/(MnO₂)_x solutions were characterized by UV-Vis and fluorescence spectroscopy. The SPE samples with C-dots/(MnO₂)_x addition were characterized by electrical impedance spectroscopy (EIS). We provided the information that the presence of C-dots/(MnO₂)_x has accelerated and facilitated the ionic transport in the SPE. These results reveal that C-dots/(MnO₂)_x nanocomposite is a good candidate for SPE. (paper)