Figure 2: Calibrating X-ray absorption spectroscopy for the detection of subtle changes in oxygen-vacancy concentration. | Nature Communications

Figure 2: Calibrating X-ray absorption spectroscopy for the detection of subtle changes in oxygen-vacancy concentration.

From: Quantifying redox-induced Schottky barrier variations in memristive devices via in operando spectromicroscopy with graphene electrodes

Figure 2

(a) Ti L-edge for increasing Ti3+ concentrations (0–11%). Inset: zoom to the photon energy of the Ti3+ L3 eg-edge. (b) O K-edge for the same Ti3+ concentrations. (c) Normalized A/B2 peak ratio for different Ti3+ concentrations. Grey line is a linear fit to the data and serves as a calibration curve.

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