Fig. 1. Equipment setup for preparation of WSe₂ by CVD method

Fig. 2. Optical micrograph of a silica sphere before WSe₂ deposition

Fig. 3. Optical microscopic images of WSe₂ deposited on silica microspheres and on flat substrates and spectrograms of flat materials

Fig. 4. SEM image. Composition analysis. Atomic percentage of A and B areas of the microsphere deposited with WSe₂