Substrate orientation effect in covalent organic frameworks/2D materials heterostructure by high-resolution atomic force microscopy

作     者：Lu Wang Cheng Lu Huijuan Yan Dong Wang Lu Wang;Cheng Lu;Huijuan Yan;Dong Wang

作者机构：CAS Key Laboratory of Molecular Nanostructure and NanotechnologyCAS Research/Education Center for Excellence in Molecular SciencesBeijing National Laboratory for Molecular Science(BNLMS)Institute of ChemistryChinese Academy of SciencesBeijing 100190China University of Chinese Academy of SciencesBeijing 100049China 

出 版 物：《Nano Research》 (纳米研究（英文版）)

年 卷 期：2023年第16卷第7期

页      面：10047-10052页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学] 

基　　金：This work is supported by the National Natural Science Foundation of China(Nos.21972147 and 22132007) the Key Research Program of the Chinese Academy of Sciences(No.XDPB01) The Supercomputing Environment of the Chinese Academy of Sciences is acknowledged for providing computational resources 

主　　题：substrate orientation effect covalent organic frameworks(COFs) on-surface synthesis high-resolution atomic force microscopy(HR-AFM) 

摘      要：Heterostructures based on covalent organic frameworks(COFs)and other two-dimensional(2D)materials attract considerable attention due to their extraordinary properties and tremendous application *** effects play a crucial role in the integration of ultrathin COF films onto 2D materials through direct *** this study,highly ordered monolayer COFs were successfully constructed on the surfaces of highly oriented pyrolytic graphite(HOPG),hexagonal boron nitride(hBN),and molybdenum disulfide(MoS_(2)).High-resolution atomic force microscopy(HR-AFM)imaging clearly reveals the substrate orientation effect in COFs/2D materials *** networks formed via Schiff-base reaction and boronic acid condensation reaction can epitaxially grow in specific orientations relative to the underlying substrate *** work provides direct evidence for substrate effects in the on-surface synthesis of COFs and paves the way for further investigation into the intrinsic electronic properties of monolayer COFs and the development of multifunctional hybrid devices.