Fig. 3 | NPG Asia Materials

Fig. 3

From: Phonon-assisted carrier transport through a lattice-mismatched interface

Fig. 3

a Distribution of wave functions in real space along layers of perfectly aligned uniform 6L MoS2. The wave functions for each conduction band at point K are represented by different colors, as indicated in the inset, where n = 1 corresponds to CBM. b Same as a but for misaligned 6L MoS2. Here, 2L MoS2 (indicated by black and red spheres) is shifted and misaligned with respect to the remaining four layers (4L) to create the 2L–4L interface. Conduction-band wave functions are mixed along layers in a, whereas in b they are separated from each other at the 2L–4L interface. Surface-potential image of c single MoS2 flake comprising two to 10 layers and d MoS2 flake comprising two and three layers covered by transferred four-layer MoS2. Measured thickness and potential values corresponding to e single flake and f covered flake. Covered region (six layer) exhibited identical values to original flake (four layer). g Schematic of rotated LMJ and energy-band alignment of layer-dependent MoS2 LMJ. h Misalignment of misorientationally stacked MoS2 layers in reciprocal space. i Transmission coefficient as a function of energy computed for the various interlayer conditions

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