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An experimental and theoretical study on nanomachining forces along zigzag and armchair lattice orientations of monolayer MoS 2
Materials Research Express ( IF 2.3 ) Pub Date : 2020-09-03 , DOI: 10.1088/2053-1591/abb32d
Meng Li 1, 2 , Yu Zhang 3 , Lu Wang 4 , Ning Xi 5 , Xiaoning Xin 1 , Xiaoshi Jin 1 , Meile Wu 1
Affiliation  

Recent progresses in the synthesis of large-area and stable atomically thin MoS 2 have evoked enormous interest toward the future applications of two-dimensional (2D) electronics. Although considerable theoretical researches have been conducted to examine the zigzag and armchair lattice orientations of MoS 2 , which are closely related to the physical and chemical properties of this material, experimental investigations into these two orientations are still quite rare. In this paper, we present an experimental study on nanofabrication along the zigzag and armchair orientations of monolayer MoS 2 using normal- and phase-mode AFM. After identifying the zigzag and armchair orientations, distinctly different nanofabrication forces along these two orientations are obtained, which are approximately 15.9 nN and 35.8 nN, respectively. To determine the underlying mechanism of this discrepancy, molecular dynamics simulation is performed. The simulated nanofabri...

中文翻译:

单层MoS 2沿之字形和扶手椅晶格取向的纳米加工力的实验和理论研究

大面积且稳定的原子薄MoS 2的合成方面的最新进展引起了人们对二维(2D)电子学的未来应用的极大兴趣。尽管已经进行了大量的理论研究来检查MoS 2的曲折和扶手椅晶格取向,这与该材料的物理和化学性质密切相关,但是对这两种取向的实验研究仍然很少。在本文中,我们提出了使用正态和相模原子力显微镜沿着单层MoS 2的锯齿形和扶手椅状取向进行纳米加工的实验研究。在确定锯齿形和扶手椅形取向之后,沿着这两个取向获得了截然不同的纳米加工力,分别约为15.9 nN和35.8 nN。为了确定这种差异的潜在机理,进行了分子动力学模拟。模拟的纳米织物
更新日期:2020-09-05
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