Fig. 3

SEM and TEM characterizations of γ-CuI nanosheets. a SEM image of triangular γ-CuI nanosheets grown on SiO2/Si substrate; Scale bar, 1 μm. b SEM-EDX profile for the obtained γ-CuI nanosheets. c LR-TEM image of a typical triangle γ-CuI nanosheet supported on a grid of copper; Scale bar, 50 nm. d HR-TEM image of a γ-CuI nanosheet, the inset is the corresponding SAED pattern of the nanosheet; Scale bar, 2 nm, the scale bar in the inset is 2 1/nm