Characteristics of Graphene(dispersion): Size of Graphene flakes: < 3 µm Thickness: <10 graphene layers Concentration: 0,1 mg/ml Solvent and concentration can be changed on request Type: reduced graphene oxide (prepared by reduction of graphene oxide)

Characteristic of Graphene(powder): Size of Graphene flakes: < 3 µm Thickness: <10 graphene layers Type: reduced graphene oxide (prepared by reduction of graphene oxide)

Characteristics of Platinum nano-ink: Mass fraction of platinum: <6 weight% Size of nanoparticles: <11 nm

Characteristics of Gold nano-ink: Mass fraction of gold: 1-2 weight% Size of nanoparticles: <50 nm

Characteristics of Silver nano-ink: Mass fraction of silver: 15-20 weight% Size of nanoparticles: <8-12 nm