Nanoscale Joule heating, Peltier cooling and current crowding at graphene-metal contacts.

  title={Nanoscale Joule heating, Peltier cooling and current crowding at graphene-metal contacts.},
  author={Kyle L. Grosse and Myung-Ho Bae and Feifei Lian and Eric Pop and William P. King},
  journal={Nature nanotechnology},
  volume={6 5},
The performance and scaling of graphene-based electronics is limited by the quality of contacts between the graphene and metal electrodes. However, the nature of graphene-metal contacts remains incompletely understood. Here, we use atomic force microscopy to measure the temperature distributions at the contacts of working graphene transistors with a spatial resolution of ~ 10 nm (refs 5-8), allowing us to identify the presence of Joule heating, current crowding and thermoelectric heating and… CONTINUE READING
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