Fig. 3: Cross-sectional transmission electron microscopy images of a VSe2 nanosheet on sapphire substrate.
From: Photoacoustic 2D actuator via femtosecond pulsed laser action on van der Waals interfaces
a General view of the VSe2-sapphire contact. The scale bar is 1 μm. b, c Enlarged images of the red square and green square in a. The scale bar is 200 nm. d Enlarged image of the blue square in a. The interlayer distance is about 0.224 nm. The scale bar is 2 nm. e, f Enlarged images of the pink square in b and the yellow square in c. The scale bar is 10 nm.
