New method enables graphene-based thermal light emitters that are directly grown on chips

Researchers from Japan's Keio University and Waseda University explain that graphene has substantial potential for on-chip nanoscale light sources, due to its small size, high brightness and fast-modulating blackbody radiation sources, but a known problem is the need for transfer processes when mechanically exfoliated or chemical vapor deposited graphene are used, resulting in low productivity and degradation of graphene quality.