Binder-free laser induced graphene-MnO2 composite electrodes for high areal energy density flexible supercapacitors

Enhanced Performance of Laser-Induced Graphene Supercapacitors via Integration with Candle-Soot Nanoparticles

“…While polyimide sheets have been traditionally used as the precursor substrate, many other polymeric substrates have also been explored. − Due to its inexpensive and straightforward synthesis approach, yet highly conductive and high surface-area nature, LIG has gained popularity as an efficient electrode material for several electronic applications, with flexible supercapacitors being a prominent focus. − However, the capacitance achieved from pristine LIG materials is comparatively lower. To enhance the capacitance of LIG materials, they are often modified either by doping with electroactive atoms (such as nitrogen, sulfur, and phosphorus) − or coating with electroactive materials (for example, carbonaceous material, metal oxides, − metal phosphate, metal–organic frameworks, , and MXenes. , Such modification processes often involve complicated steps, leading to increased fabrication costs and complexity, deviating from the inherent simplicity and cost-effectiveness of the LIG process.…”