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

工程化防冰表面是解决我们日常生活和工业应用中防冰和除冰挑战的长期努力。超疏水表面和光热效应显示出在防冰和除冰方面的独特优势。迫切需要利用它们的共同利益，即使在极低的温度下也能实现被动的，持久的和可持续的憎冰性。我们报告了一种具有层次结构的超疏水选择性表面，以实现稳定的超疏水性和高效的太阳热能转化。精心设计表面光谱选择性，以最大程度地收集太阳能，同时最大程度地减少热辐射损失。增强的太阳热转换功能可在-60°C的创纪录低温下，在1个阳光照射下，对无固小滴进行出色的除冰。太阳热转换和超疏水性的​​协同作用使表面具有卓越且持久的憎冰性。此外，由于其基于全溶液的可扩展制造方法，所呈现的憎冰表面显示出巨大的潜力和广泛的影响。