Size and Density of Graphene Domains Grown with Different Annealing Times 


Vol. 34,  No. 11, pp. 3312-3316, Nov.  2013
10.5012/bkcs.2013.34.11.3312


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  Abstract

Single crystals of hexagonal graphenes were successfully grown on Cu foils using the atmospheric pressure chemical vapor deposition (CVD) method. We investigated the effects of reaction parameters, such as the growth temperature and annealing time, on the size, coverage, and density of graphene domains grown over Cu foil. The mean size of the graphene domains increased significantly with increases in both the growth temperature and annealing time, and similar phenomena were observed in graphene domains grown by low pressure CVD over Cu foil. From the comparison of micro Raman spectroscopy in the graphene films grown with different annealing times, we found that the nucleation and growth of the domains were strongly dependent on the annealing time and growth temperature. Therefore, we confirmed that when reaction time was same, the number of layers and the degree of defects in the synthesized graphene films both decreased as the annealing time increased.

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  Cite this article

[IEEE Style]

D. H. Jung, C. Kang, J. E. Nam, J. Kim, J. S. Lee, "Size and Density of Graphene Domains Grown with Different Annealing Times," Bulletin of the Korean Chemical Society, vol. 34, no. 11, pp. 3312-3316, 2013. DOI: 10.5012/bkcs.2013.34.11.3312.

[ACM Style]

Da Hee Jung, Cheong Kang, Ji Eun Nam, Jin-Seok Kim, and Jin Seok Lee. 2013. Size and Density of Graphene Domains Grown with Different Annealing Times. Bulletin of the Korean Chemical Society, 34, 11, (2013), 3312-3316. DOI: 10.5012/bkcs.2013.34.11.3312.

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ISSN(Print) 0253-2964
ISSN(Online) 1229-5949