State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, The Chinese Academy of Sciences, Dalian 116023, P.R. China.
Phys Chem Chem Phys. 2010 May 21;12(19):5053-7. doi: 10.1039/c000719f. Epub 2010 Mar 24.
Graphene growth and dissolution on Ru(0001) was dynamically imaged by low energy electron microscopy (LEEM) and photoemission electron microscopy (PEEM). It was found that multilayer graphene grows on the metal surface in a layer-by-layer mode and the removal of graphene multilayers also occurs one layer after another. The topmost surface of the formed multilayer graphene is physically continuous as indicated by scanning tunneling microscope (STM) images. Accordingly, a bottom-up growth mechanism of multilayer graphene on Ru(0001) was proposed, which would help to prepare graphene overlayers with controlled thickness.
通过低能电子显微镜（LEEM）和光电子发射显微镜（PEEM）对 Ru(0001) 上的石墨烯生长和溶解进行了动态成像。研究发现，多层石墨烯以逐层模式在金属表面生长，而石墨烯多层的去除也是一层一层地进行的。由扫描隧道显微镜（STM）图像表明，所形成的多层石墨烯的最顶层表面是物理连续的。因此，提出了 Ru(0001) 上多层石墨烯的自下而上生长机制，这有助于制备具有可控厚度的石墨烯覆盖层。
