Surface dependence of electronic growth of Cu(111) on MoS2

被引:1
|
作者
Harms, Haley A. [1 ]
Cunningham, Connor J. [1 ]
Kidd, Timothy E. [1 ]
Stollenwerk, Andrew J. [1 ]
机构
[1] Univ Northern Iowa, Phys Dept, Cedar Falls, IA 50614 USA
基金
美国国家科学基金会;
关键词
D O I
10.1063/5.0215887
中图分类号
O59 [应用物理学];
学科分类号
摘要
Scanning tunneling microscopy shows that copper deposited at room temperature onto a freshly exfoliated MoS2 surface forms Cu(111) clusters with periodic preferred heights of 5, 8, and 11 atomic layers. These height intervals correlate with Fermi nesting regions along the necks of the bulk Cu Fermi surface, indicating a connection between physical and electronic structures. Density functional theory calculations of freestanding Cu(111) films support this as well, predicting a lower density of states at the Fermi level for these preferred heights. This is consistent with other noble metals deposited on MoS2 that exhibit electronic growth, in which the metal films self-assemble as nanostructures minimizing quantum electronic energies. Here, we have discovered that it is critical for the metal deposition to begin on a clean MoS2 surface. If copper is deposited onto an already Cu coated surface, even if the original film displays electronic growth, the resulting Cu film lacks quantization. Instead, the preferred heights of the Cu clusters simply increase linearly with the amount of Cu deposited upon the surface. We believe this is due to different bonding conditions during the initial stages of growth. Newly deposited copper would bond strongly to the already present copper clusters, rather than the weak bonding, which exists to the van der Waals terminated surface of MoS2. The stronger bonding with previously deposited clusters hinders additional Cu atoms from reaching their lowest quantum energy state. The interface characteristics of the van der Waals surface enable surface engineering of self-assembled structures to achieve different applications.
引用
收藏
页数:6
相关论文
共 50 条
  • [1] Electronic growth of Pd(111) nanostructures on MoS2
    Kidd, Timothy E.
    Scott, Skylar
    Roberts, Sophie
    Carlile, Ryan
    Lukashev, Pavel, V
    Stollenwerk, Andrew J.
    JOURNAL OF APPLIED PHYSICS, 2021, 129 (17)
  • [2] Single layer MoS2 on the Cu(111) surface: First-principles electronic structure calculations
    Le, Duy
    Sun, Dezheng
    Lu, Wenhao
    Bartels, Ludwig
    Rahman, Talat S.
    PHYSICAL REVIEW B, 2012, 85 (07)
  • [3] The nucleation mechanism of MoS2 on Au(111) surface
    Shao, Peng
    Wang, Chen-Yu
    Xia, Rong Rong
    Zhang, Xiao-Chun
    Liu, Ling-Yue
    Zhao, Ya-Ru
    MATERIALS TODAY COMMUNICATIONS, 2024, 40
  • [4] Electronic growth of Ag islands on MoS2
    Chang, Cheng-Hsun-Tony
    Chang, Ho-Hsiang
    Jiang, Pei-Cheng
    Su, Wei-Bin
    JAPANESE JOURNAL OF APPLIED PHYSICS, 2018, 57 (08)
  • [5] Epitaxial growth, electronic hybridization and stability under oxidation of monolayer MoS2 on Ag(111)
    do Amaral, Gabriela Moura
    Tonon, Isabela da Costa
    Pena Roman, Ricardo Javier
    Plath, Hannah de Oliveira
    Taniguchi, Theo Massao
    de Lima, Luis Henrique
    Zagonel, Luiz Fernando
    Landers, Richard
    de Siervo, Abner
    APPLIED SURFACE SCIENCE, 2021, 538
  • [6] Electronic Structure of Twisted Bilayers of Graphene/MoS2 and MoS2/MoS2
    Wang, Zilu
    Chen, Qian
    Wang, Jinlan
    JOURNAL OF PHYSICAL CHEMISTRY C, 2015, 119 (09): : 4752 - 4758
  • [7] Mechanism of MoS2 Growth on a Au(111) Surface: An Ab Initio Molecular Dynamics Study
    Shao, Peng
    Ding, Li-Ping
    Ding, Feng
    CHEMISTRY OF MATERIALS, 2021, 33 (09) : 3241 - 3248
  • [8] The Transition From MoS2 Single-Layer to Bilayer Growth on the Au(111) Surface
    Ewert, Moritz
    Buss, Lars
    Braud, Nicolas
    Kundu, Asish K.
    Sheverdyaeva, Polina M.
    Moras, Paolo
    Genuzio, Francesca
    Mentes, Tevfik Onur
    Locatelli, Andrea
    Falta, Jens
    Flege, Jan Ingo
    FRONTIERS IN PHYSICS, 2021, 9
  • [9] Electronic State Formation by Surface Atom Removal on a MoS2 Surface
    Kodama, Nagisa
    Hasegawa, Tsuyoshi
    Tsuruoka, Tohru
    Joachim, Christian
    Aono, Masakazu
    JAPANESE JOURNAL OF APPLIED PHYSICS, 2012, 51 (06)
  • [10] The dependence of electrocatalytic HER activity of decorated MoS2 with Cu nanoclusters
    Lin, Tianzhao
    Xu, Ruixin
    Hu, Yugao
    Wang, Jianchun
    Liu, Yanyu
    Zhou, Wei
    SURFACES AND INTERFACES, 2024, 46