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Power spectrum analysis of lateral friction of MoS2: A theoretical and experimental study
Li M(李萌); Liu LQ(刘连庆); Xi N(席宁); Jiao ND(焦念东); Wang YC(王越超)
作者部门机器人学研究室
会议名称2016 IEEE 16th International Conference on Nanotechnology (IEEE-NANO 2016)
会议日期August 22-25, 2016
会议地点Sendai, Japan
会议录名称Proceedings of the 16th International Conference on Nanotechnology
出版者IEEE
出版地New York
2016
页码857-860
收录类别EI ; CPCI(ISTP)
EI收录号20165203181616
WOS记录号WOS:000391840000244
产权排序1
ISBN号978-1-5090-1494-1
关键词Mos2 Friction Signal Power Spectrum
摘要The remarkable properties of two-dimensional materials have generated great enthusiasm among researchers. Very recently, MoS2, the representative of transition metal dichalcogenides, has triggered increasing attention and hold huge potential for many applications. Although the tribological properties of MoS2 has been studied for decades, the atomic-scale motion between tip and MoS2 surface is quite rare. Furthermore, the mechanism underlying the friction variation is still unclear. To explore the unknown territory, we carry out both theoretical and experimental research on the power spectrum variation of lateral friction between probe and MoS2. Lateral Friction Microcopy (LFM) was utilized to acquire atomic images for analysis. The friction signals of MoS2 in different angles that obtained from original atomic images were then processed by fast Fourier transform (FFT). We observed distinct characteristic in power spectrum variation between special (zigzag and armchair) and general lattice orientations for the first time. To explain this phenomenon for both cases, we establish a complete motion model and further deduce the different frequencies that the motion model contain. The theoretical analysis well illustrated the different power spectrum variation of actual friction signals for special and general lattice orientations. The results of this paper pave an avenue to fully revel the friction variation mechanism of MoS2 and develop an effective method to detect the lattice orientations of MoS2.
语种英语
引用统计
文献类型会议论文
条目标识符http://ir.sia.cn/handle/173321/19761
专题机器人学研究室
通讯作者Liu LQ(刘连庆)
作者单位1.State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, 110016, China
2.University of Chinese Academy of Sciences, Beijing, 100049, China
推荐引用方式
GB/T 7714
Li M,Liu LQ,Xi N,et al. Power spectrum analysis of lateral friction of MoS2: A theoretical and experimental study[C]. New York:IEEE,2016:857-860.
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