OTTO GR 891 - Graphene (monolayer) on Silica (10 mm x 10 mm) - used for Graphene research, Graphene transistors and electronic applications, Graphene optoelectronics, plasmonics and nanophotonics, Graphene photodetectors (measure photon flux or optical power), Biosensors and bioelectronics, Aerospace industry (electronics, thermal interface materials, etc.), MEMS and NEMS.