Figure 5 | NPG Asia Materials

Figure 5

From: Combining the lotus leaf effect with artificial photosynthesis: regeneration of underwater superhydrophobicity of hierarchical ZnO/Si surfaces by solar water splitting

Figure 5

(a) Boundaries of the ZnO NR length required to allow gas bubbles to fill the interfacial region of the surface and form a stable gas interlayer theoretically calculated using equation (1). ● denotes the experimental results that involved the successful formation of a stable gas interlayer from the generated gas bubbles. All three ● data points are within the theoretically acceptable zone. X denotes the results of experiments in which a stable gas interlayer was not formed from the generated gas bubbles. All three X data points are outside the theoretically acceptable zone. (b) Three-dimensional schematic image of the ZnO/Si HRs. Inset image of b depicting magnified the ZnO NRs on top of the Si MPs in the ZnO/Si HRs. (c) Relative intensity transitions of the ZnO/Si HRs for several wetting and dewetting cycles.

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