Nano Science and Technology Institute
Nanotech 2009 Vol. 1
Nanotech 2009 Vol. 1
Nanotechnology 2009: Fabrication, Particles, Characterization, MEMS, Electronics and Photonics
 
Chapter 4: Nanoscale Characterization
 

Characterization of graphene segregated on Ni

Authors:Q. Yu, J. Lian, Y.P. Chen, H. Li, S.S. Pei
Affilation:University of Houston, US
Pages:308 - 309
Keywords:graphene, segregation, nickel
Abstract:We report a surface segregation approach to synthesize high quality graphenes on Ni under ambient pressure. Graphenes were segregated from Ni surfaces by carbon dissolving at high temperature and cooling down with various cooling rates. Different segregation behaviors were identified, allowing us to control the thickness and defects of graphene films. Electron microscopy, Raman spectroscopy, and scanning tunneling microscope studies indicated that these graphenes have high quality crystalline structure and controllable thickness. Graphenes were transferred to insulating substrates by wet etching and were found to maintain their high quality. Electronic properties of the graphene layers were also explored.
ISBN:978-1-4398-1782-7
Pages:702
Hardcopy:$179.95
 
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