[11a-N302-1~11] 17.3 Layered materials

▲ [11a-N302-9] Nonlinear mechanical response of ripple structure in MoS₂ nanosheet

〇(D)Lilin Xie¹, Yoshifumi Oshima¹ (1.JAIST)

Keywords:Molybdenum disulfide, Ripples, Mechanical property

Here, we perform in situ transmission electron microscopy (TEM) observation to analyze the strain dependence of the ripple structure in the atomic-thin MoS₂ nanosheet. By applying geometric phase analysis to TEM images, the ripple structure, which formed due to the externally imposed strain, was estimated. By analyzing the geometric evolution of ripple structure, the Poisson’s ratio of MoS₂ nanosheet with increasing tensile strain was revealed.