MAE researchers demonstrate graphene-paper electronics through thermally localised laser graphitisation

An international study led by MAE Associate Professor Murukeshans and team in collaboration with Panasonic Factory Solutions Asia Pacific, Korea Advanced Institute of Science and Technology (KAIST) and Rochester Institute of Technology demonstrate the fabrication of integrated graphene-paper electronics with exceptional thermal control through their developed process: thermally localized laser graphitization (LLG), employing optimized ultrafast laser writing on polyimide, without which the paper substrate would be easily damaged through the writing process.

By predicting laser parameters for LLG using their developed and validated analytical temperature model, LLG enables the in-situ fabrication of graphene devices at high temperature across tens of micrometre thick films. Liquid electrolyte LPG micro-supercapacitors and humidity sensors can thus be fabricated directly on paper without thermally induced damage.

This combination of high-performance graphene and low cost of paper supports PFSAP's vision for the future of electronics manufacturing in low cost, flexible hybrid graphene electronics.

The study is recently published in Advanced Materials Technologies: https://onlinelibrary.wiley.com/doi/abs/10.1002/admt.202001156