Fig. 2: TEM and XRD characterizations of PdSe2 flakes.
From: Giant nonlinear optical activity in two-dimensional palladium diselenide
a HRTEM image of the few-layer region of PdSe2 flakes. The inset shows a zoom-in of the white square regions, revealing the atomic models. The scale is marked in the lower-left corner. b FFT diffraction patterns of the solid white areas highlighted on the image (a). c SAED pattern of the PdSe2. d XRD pattern of bulk PdSe2 is in good agreement with the standard PDF card (PDF#97-017-0327). The diffraction pattern exhibits six robust peaks at 23.1, 31.8, 41.5, 47.2, 50.14, and 64.4°, respectively.
