Figure 3: XPS Spectroscopy following hydrazine treatment.

Spectra for MoO_x/MoS₂ core-shell nanowire array before and after hydrazine treatment, showing the Mo 3d, S 2s, and S 2p core level binding energies. The red curves denote the Mo 3d and S 2p signals corresponding to 2H-MoS₂, with the purple curves showing the shift resulting from the phase transformation to 1T-MoS₂. The MoO_x core seems to be a mixed phase valence, the Mo 3d oxidation states are shown by the dark and light blue curve, and sulfur signals are denoted by green.