Fig. 2: Control parameters for designing HSGs. | Nature Communications

Fig. 2: Control parameters for designing HSGs.

From: Multiaxial oil-repellent surfaces for self-cleaning of sticky dust and enhanced photovoltaic efficiency

Fig. 2: Control parameters for designing HSGs.

a Definition of initial geometric parameters of SGs: length (L0), width (W0), and gap (G0). b Initial spin-coating thickness (T). c Schematic of SG-to-HSG transformation via capillary rise of liquid prepolymer. d Structural evolution with increasing T: from the non-hyperbolic SG (top left) to fully connected pillars (bottom right). e Influence of T on gap (G) and width of connected pillars (Ws). f Variation of contact angle as a function of T. Error bars in (e) and (f) represent mean ± s.d. obtained from multiple measurements (n > 15).

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