Summary
The synthesis of laser-induced graphene (LIG) from polyimide (PI) sheets offers an economical and direct patterning method for graphene-based digital units. Nonetheless, the fabrication of LIG-based electrodes towards photovoltaic purposes urgently must be explored. Herein, facile high-yield manufacturing of the porous LIG counter electrodes for DSSC purposes was demonstrated by laser induction of PI movie. {The electrical} conductivity and electrocatalytic exercise of the LIG electrodes elevated with the utilized laser energy because of the formation of a novel hierarchical porous graphene construction with plentiful edges and defects, which resulted in an evident enchancment in energy conversion effectivity (PCE) of three.56%. As well as, a one-step in situ synthesis of Pt/LIG composite was additional demonstrated by laser irradiation on the PI sheet with low loadings of Pt precursor to acquire a Pt-less counter electrode. It’s discovered that the Pt/LIG composite electrode-based DSSC achieved the next PCE of three.80%, which is akin to that of pure Pt-based DSSC. This examine demonstrates that the porous LIG from PI movies is a promising candidate as a carbonaceous counter electrode for DSSCs.
