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There is now a CONTENT FREEZE for Mercury while we switch to a new platform. It began on Friday, March 10 at 6pm and will end on Wednesday, March 15 at noon. No new content can be created during this time, but all material in the system as of the beginning of the freeze will be migrated to the new platform, including users and groups. Functionally the new site is identical to the old one. webteam@gatech.edu
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The goal of graphene electronics research has been to find a semiconducting form of graphene for use in devices. It has been recently shown that the buffer layer, the first layer of graphene on the SiC(0001) face, is a semiconductor with a band gap of >0.5eV. Now, two new semiconducting bands (with a band gap of >1.5eV) have been discovered which relate to a structured graphene geometry; metallic sidewall graphene nanoribbons seamlessly connect to a new form of semiconducting graphene, called terrace buffer. In this talk, we will present growth and structure data as well as ARPES measurements showing the new semiconducting graphene bands. I will show what growth conditions lead to these new semiconducting bands.
