University of Virginia , 395 McCormick Road, P.O. Box 400745, Charlottesville, Virginia 22904-4745, United States.
Zernike Institute for Advanced Materials, University of Groningen , Nijenborgh 4, NL-9747AG Groningen, The Netherlands.
Nano Lett. 2015 Nov 11;15(11):7421-30. doi: 10.1021/acs.nanolett.5b02851. Epub 2015 Oct 6.
Intercalation of C60 molecules at the graphene-substrate interface by annealing leads to amorphous and crystalline structures. A comparison of topography and electronic structure with wrinkles and moiré patterns confirms intercalation. The intercalated molecules imprint a local strain/deformation on the graphene layer whose magnitude is controlled by the intermolecular distance. The crystalline intercalated structure exhibits a superlattice peak in the local density of states. This work provides control of local strain in graphene.
通过退火将 C60 分子嵌入到石墨烯-基底界面会导致非晶态和晶态结构的形成。通过与褶皱和莫尔条纹的形貌和电子结构对比，证实了这种嵌入。嵌入的分子在石墨烯层上留下局部应变/变形，其大小由分子间距离控制。晶态嵌入结构在局域态密度中表现出超晶格峰。这项工作为控制石墨烯中的局部应变提供了可能。
