Faculty of Physics, University of Bielefeld, Bielefeld, Germany.
Adv Mater. 2013 Aug 14;25(30):4146-51. doi: 10.1002/adma.201300651. Epub 2013 May 29.
Self-assembled monolayers of aromatic molecules on copper substrates can be converted into high-quality single-layer graphene using low-energy electron irradiation and subsequent annealing. This two-dimensional solid state transformation is characterized on the atomic scale and the physical and chemical properties of the formed graphene sheets are studied by complementary microscopic and spectroscopic techniques and by electrical transport measurements. As substrates, Cu(111) single crystals and the technologically relevant polycrystalline copper foils are successfully used.
在铜衬底上自组装的芳香族分子单层可以通过低能电子辐照和随后的退火转化为高质量的单层石墨烯。这种二维固态相变在原子尺度上进行了表征，并通过互补的微观和光谱技术以及电输运测量研究了形成的石墨烯片的物理和化学性质。作为衬底，成功地使用了 Cu(111)单晶和技术相关的多晶铜箔。
