Integrating Energy Devices for Wearable Electronics

Due to fossil fuel usage and population growth, sustainable energy options are in high demand. The storage of these resources plays an important role for future generation electronics. Globally, the technologies helpful in converting solar energy and its storage are attracting enormous attention. Two devices, a solar cell/photovoltaic cell and an electrochemical capacitor or supercapacitor, can be used to store solar energy. Photosupercapacitor (PSCs) are promising because they combine a solar energy converter with a supercapacitor (SC) in a single device. Research into PSCs is booming because of their potential use in portable and wearable electronics. They show great promise as a replacement for conventional energy sources and as generators for the future. Due to their low production cost, a wide range of applications, and multi-axial adaptability, flexible/fiber and planar photosupercapacitor are attracting a lot of attention. This article discusses in depth the various varieties of photosupercapacitor, including their design configuration, working mechanism, and fabrication. In conclusion, the difficulties arising in integration of the individual devices, preserving excellent cyclic stability, and increasing the specific capacitance, and future applications are discussed.