Fig. 2: Electrical contacts of W-exfoliated MoS2.
From: Site-specific electrical contacts with the two-dimensional materials
Side view illustrations of a 1L MoS2 edge contact, b 2L MoS2 face contact, and c 2L MoS2 edge contact. The yellow, purple, and white balls on a–c represent sulfur atoms, molybdenum atoms, and tungsten atoms, respectively. The black arrows in a–c indicating the moving direction of the W tip. TEM images of d, e 1L, f 2L, and g 6L edge contact. TEM images of h 1L, i 2L, and j 6L face contact. The color on d, h aims to enhance the contrast of the stair-like structure. Scale bars in d–j =5 nm. k, l Current density–voltage (J–V) plots of e–g and h–j, respectively. The solid lines indicate the fitted range. The inset table shows the fitting parameters and the fitting curves can be seen in Supplementary Fig. 3.
