Inking elastomeric stamps with micro-patterned, single layer graphene to create high-performance OFETs.

There are two current methods to process graphene electrodes over the large scale: graphitization of single crystal SiC [ 9 , 10 ] and chemical vapor deposition (CVD) on metal fi lms. [ 3 , 11 , 12 ] Specifi cally for electrodes, CVD-grown graphene has promise in producing electrodes because the fi lms have low resistance, high optical transmittance and fl exibility. [ 3 , 12 ] Several reports have demonstrated organic thin fi lm transistors (OTFT) using CVD-grown graphene as source and drain electrodes. [ 13–18 ]