This work reports on the strategy to reversibly generate or suppress oxygen vacancies on α-MoO which were probed by Raman spectroscopy. Reversible changes in two features of the α-MoO Raman spectrum could be correlated to the generation of oxygen vacancies: displacement of the T band frequency and the intensity decrease of the symmetrical stretching ( ) band. These two features could be used to qualitatively describe oxygen vacancies. Raman results also indicate that oxygen vacancies are located in the interlayer region of the α-MoO lattice. This observation is corroborated by X-ray diffraction, which also indicates the absence of nonstoichiometric phase transitions.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9053742 | PMC |
| http://dx.doi.org/10.1039/d0ra01207f | DOI Listing |
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