Likely single devices patterned from a epitaxially grown graphene layer. It would be a functioning transistor —- or set of transistors, albeit not terribly usef

Likely single devices patterned from a epitaxially grown graphene layer. It would be a functioning transistor —- or set of transistors, albeit not terribly useful as single devices. Typically they would pattern the devices with large metal landing pads to drop probes onto, and perform characterization from there.