The structure of niobium-doped MoSe2 and WSe2

Polycrystalline niobium-doped molybdenum and tungsten diselenides were synthesized in silicatubes sealed under secondary vacuum. They were characterized by scanning electron microscopy, electrondiffraction, X-ray diffraction, chemical composition and EDX analyses. The morphology of niobium-dopedmolybdenum solid solutions was shown to depend strongly on the conditions of synthesis, whereas the structuralcharacterization did not.