Current annealing behavior in suspended graphene
- Nam, Youngwoo
- Issue Date
- KOREAN PHYSICAL SOC
- Suspended graphene; Current annealing; High quality; High bias; Quantum Hall effect
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.79, no.1, pp.76 - 80
- Journal Title
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY
- Start Page
- End Page
- Current annealing behaviors that directly contribute to excellent electrical transport properties in suspended graphene devices are investigated. All successful annealing data for various thicknesses of graphene exhibit three different stages in current-voltage curves upon bias voltage application: (1) sublinear increase in current, (2) abrupt current decrease, and (3) current saturation. This can be attributed to the phonon effect and the structural deformation of graphene at high temperatures induced by Joule heating. It is observed that cleaning occurred primarily in the last stage when the current becomes saturated.
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- 자연과학대학 > 물리학과 > Journal Articles
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