For my thesis, I synthesized and characterized $\mathrm{Mo_{1-x}W_xS_2}$ nanoflakes that grow from the vapor phase of the elements molybdenum, tungsten and sulphur during chemical vapor transport reaction. I investigated the surface structure and topography of the flakes using contact atomic force microscopy (c-AFM). I focused on measurements of height profiles from which I estimated the thickness of $\mathrm{Mo_{1-x}W_xS_2}$ single layer. I investigated the optical properties of the flakes using confocal Raman spectroscopy to determine the Raman active vibrational modes. I compared the spectra obtained with 532 nm and 633 nm excitational wavelengths. I identified local chemical differences across flakes using Raman mapping. The thesis is focused on the application of the mentioned methods for the characterization of the nanostructured ternary materials, using $\mathrm{Mo_{1-x}W_xS_2}$ flakes as an example.
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