Research Article
Role of Oxygen Vacancies in the Electrical Properties of WO3−x Nano/Microrods with Identical Morphology
Figure 5
Electrochemical impedance spectra of the devices fabricated with the obtained WO3−x crystals in different levels of relative humidity: (a) WO3, (b) WO2.90, (c) W19O55, and (d) W18O49; and the equivalent circuits of the devices (e).
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