Creating Powerful, Antifungal Supercapacitors with Laser-Induced Graphene and Silver Nanoparticles

Have you ever thought about using lasers to make supercapacitors? Well, scientists have done just that! They've found a way to create Laser-Induced Graphene (LIG) using a CO2 laser on a polyimide substrate. This LIG is then combined with silver nanoparticles (AgNPs) to make supercapacitor electrodes. There are two methods for this: drop-coating and screen-printing. For drop-coating, AgNPs made from the plant extract of Swietenia Macrophylla are used.

Screen-printing uses commercial Ag-ink and a suitable mesh. The results? Supercapacitors made from screen-printed electrodes have a high specific capacitance of 118 mF/cm2 and an energy density of 2. 42 mWh/cm2. Drop-coated electrodes have a lower capacitance and energy density. Interestingly, these LIG-Ag composites also have anti-fungal properties, showing effectiveness against Candida sp.

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