Study: NiO Nanoparticles Anchored on N-Doped Laser-Induced Graphene for Flexible Planar Micro-Supercapacitors. Image Credit: Rost9/Shutterstock.com
Flexible MSCs are classified into two main types: planar and sandwich-type MSCs. Flexible planar MSCs are developed with interdigital fingers as current collectors, and the electrolyte is covered on the electrode surfaces and interspaces. Related StoriesPhotolithography and plasma etching methods often need custom masks and specific processing conditions, leading to time-consuming and expensive procedures. Therefore, these methods are not always scalable and universally applicable.
Graphene fabricated by existing techniques suffers from different drawbacks. Mechanical exfoliation leads to the small size and irregular shape of graphene sheets. The CVD technique entails complex preparation processes and increased costs. The redox method can lead to deterioration of the desirable innate properties of graphene and environmental damage due to excessive discharge of chemical waste.
Important Findings of the Study In this research, the team used a facile and effective laser direct writing approach to fabricate flexible planar micro-supercapacitors using the NiO/NLIG composite electrodes.