Fig. 4: Separation and transfer behaviors of the photogenerated carriers. | Nature Communications

Fig. 4: Separation and transfer behaviors of the photogenerated carriers.

From: Etched BiVO4 photocatalyst with charge separation efficiency exceeding 90%

Fig. 4

a1, b1 3D AFM topographic images of BiVO4:Mo and BiVO4:Mo(NaOH) samples. 3D KPFM potential images under (a2, b2) dark and (a3, b3) illuminated conditions. c, d Cross-sectional SPV of BiVO4:Mo and BiVO4:Mo(NaOH) samples acquired from 3D KPFM potential images under dark and illuminated conditions. e, f Analysis of electrical field calculated from the results in (c, d). SPV: surface photovoltage.

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