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Role of Charge Density Wave in Monatomic Assembly in Transition Metal Dichalcogenides
Author(s) -
Feng Haifeng,
Xu Zhongfei,
Zhuang Jincheng,
Wang Li,
Liu Yani,
Xu Xun,
Song Li,
Hao Weichang,
Du Yi
Publication year - 2019
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201900367
Subject(s) - monatomic ion , materials science , charge density wave , nanoelectronics , transition metal , superlattice , nanotechnology , chemical physics , substrate (aquarium) , epitaxy , condensed matter physics , graphene , catalysis , optoelectronics , layer (electronics) , biochemistry , chemistry , physics , superconductivity , organic chemistry , oceanography , geology
The charge density wave (CDW) in transition metal dichalcogenides (TMDs) has drawn tremendous interest due to its potential for tailoring their surface electronic and chemical properties. Due to technical challenges, however, how the CDW could modulate the chemical behavior of TMDs is still not clear. Here, this work presents a study of applying the CDW of NbTe 2 , with a high transition temperature above room temperature, to generate the assembling adsorption of Sn adatoms on the surface. It is shown that highly ordered monatomic Sn adatoms with a quasi‐1D structure can be obtained under regulation by the single‐axis CDW of the substrate. In addition, the CDW modulated superlattices could in turn change the surface electronic properties from semimetallic to metallic. These results demonstrate an effective approach for tuning the surface chemical properties of TMDs by their CDWs, which could be applied in exploring them for various practical applications, such as heterogeneous catalysis, epitaxial growth of low‐dimensional materials, and future nanoelectronics.