The Optical Visibility of Graphene: Interference Colors of Ultrathin Graphite on SiO2

作者：Stefano Roddaro, Pasqualantonio Pingue, Vincenzo Gaetano Piazza, V. Pellegrini, Fabio Beltram · 发表于：Nano Letters · 年份：2007 · DOI：10.1021/nl071158l · 被引用次数：276 · 研究领域：Graphene research and applications、2D Materials and Applications、Nanowire Synthesis and Applications

Monatomic layers of graphite are emerging as building blocks for novel optoelectronic devices. Experimental studies on a single graphite layer (graphene) are today possible since very thin graphite can be identified on a dielectric substrate using a normal optical microscope. We investigate the mechanism behind the strong visibility of graphite, and we discuss the importance of substrates and of the microscope objective used for the imaging.