Solar-assisted icephobicity down to −60°C with superhydrophobic selective surfaces

Engineering icephobic surfaces has been a long-standing effort to address the challenges of ice prevention and removal in our daily life industrial applications. Superhydrophobic photothermal effect have shown their distinct merits anti-icing deicing. It is highly desirable exploit mutual benefits realize passive, durable, sustainable icephobicity even at extremely low temperatures. We report on superhydrophobic selective surface constructed with hierarchical architecture enable stable superhydrophobicity high-efficiency solar-thermal conversion. The spectral selectivity deliberately designed maximize solar harvesting while minimizing thermal re-radiation loss. boosted conversion empowers remarkable sessile droplet record-low temperature −60°C under 1-sun illumination. synergy endows superior durable icephobicity. Moreover, presented shows great potential broad impacts, owing its all-solution-based scalable fabrication method.