Proceeding of EDISON Challenge (EDISON SW 활용 경진대회 논문집)

Korea Institute of Science and Technology Information (한국과학기술정보연구원)
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Origin of Charge Puddle of Graphene on α - SiO2: First Principles Study.

  • Shim, Yoon Su (Graduate School of EEWS, Korea Advanced Institute for Science and Technology)
  • Published : 2015.03.19
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Abstract

Ripples and charge impurity effect of graphene are considered as the origin of charge puddles in graphene sheet on SiO2. However, this topic is very controversial among researchers in graphene community. In this study, by using density functional theory, we calculate the band structure of the rippled graphene model and charged impurity model that is located close to the (0001) ${\alpha}$-quartz surface. We expect that this study will provide great insight on this matter.

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