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Surface‐Confined Single‐Layer Covalent Organic Framework on Single‐Layer Graphene Grown on Copper Foil
Author(s) -
Xu Lirong,
Zhou Xin,
Tian Wei Quan,
Gao Teng,
Zhang Yan Feng,
Lei Shengbin,
Liu Zhong Fan
Publication year - 2014
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201400273
Subject(s) - graphene , scanning tunneling microscope , covalent bond , foil method , materials science , copper , graphene nanoribbons , layer (electronics) , nanotechnology , graphene foam , graphene oxide paper , covalent organic framework , chemical physics , chemical engineering , composite material , chemistry , organic chemistry , metallurgy , engineering
The integration of 2D covalent organic frameworks (COFs) with atomic thickness with graphene will lead to intriguing two‐dimensional materials. A surface‐confined covalently bonded Schiff base network was prepared on single‐layer graphene grown on copper foil and the dynamic reaction process was investigated with scanning tunneling microscopy. DFT simulations provide an understanding of the electronic structures and the interactions between the surface COF and graphene. Strong coupling between the surface COF and graphene was confirmed by the dispersive bands of the surface COF after interaction with graphene, and also by the experimental observation of tunneling condition dependent contrast of the surface COF.