Visibility of graphene flakes on a dielectric substrate
Visibility of graphene flakes on a dielectric substrate
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DOI：
10.1063/1.2768625
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发表时间：
2007-08-06
影响因子：
4
通讯作者：
Fal'ko, Vladimir I.
中科院分区：
文献类型：
--
作者：
Abergel, D. S. L.;Russell, A.;Fal'ko, Vladimir I.
作者模拟了沉积在SiO2/Si衬底上或在SiC表面上热退火的单层和双层石墨烯的光学可见性。可见度在反射时比透射时强得多，当裸基底共振透射光时达到最佳条件。在光学频率范围内，双层的可见度大约是单层的两倍，从而使两种类型的石墨烯彼此可区分。(c)2007年，美国物理学会。
The authors model the optical visibility of monolayer and bilayer graphene deposited on a SiO2/Si substrate or thermally annealed on the surface of SiC. Visibility is much stonger in reflection than in transmission, reaching the optimum conditions when the bare substrate transmits light resonantly. In the optical range of frequencies a bilayer is approximately twice as visible as a monolayer thereby making the two types of graphene distinguishable from each other. (c) 2007 American Institute of Physics.