Photothermal slippery surface showing rapid self-repairing and exceptional anti-icing/deicing property

Ice formation and accretion cause significant economic losses and disastrous events. Designing a new generation of anti-icing/deicing surface has emerged as an effective strategy for anti-icing/deicing. However, fabricating novel anti-icing/deicing surfaces that offer both stability and self-repairing remains a significant challenge. In this study, photothermal slippery surfaces (PSSs) showing rapid self-repairing, exceptional anti-icing/deicing performance, and excellent stability were prepared by combining porous substrate, photothermal material, and solid lubricant. The fabricated surface could rapidly self-repair under 1 sun or under near-infrared (NIR) illumination. Significantly, ice did not form on PSS even at –12 ± 1.0 ℃ under 1 sun. In addition, PSS exhibited rapid photothermal deicing, melting the accumulated ice within 270.6 ± 2.8 s under 1 sun at –12 ± 1.0 ℃. Furthermore, PSS exhibited outstanding stability in air and water for 32 d. This photothermal slippery surface offers significant potential for practical applications that require long-term anti-icing/deicing properties.