Ultrahigh Transparent\nSafety Film for Spectrally Selective\nPhoto/Electrothermal Conversion via Surface-Enhanced Plasma Resonance\nDynamics

Traditional\ndeicing methods are increasingly insufficient\nfor modern\ntechnologies like 5G infrastructure, photovoltaic systems, nearspace\naerocraft, and terrestrial observatories. To address the challenge\nof combining anti-icing efficiency with operational performance, an\ninnovative, spectrally selective, photo/electrothermic, ice-phobic\nfilm was prepared through a cost-effective mist deposition method.\nBy manipulating the diameter ratio and density of nanowires, the local\ndensity of free electrons within this film is controlled to precisely\ndictate the position and intensity of surface plasmon resonance to\nachieve spectrally selective photo/electrothermal conversion. Additionally,\nthe synthesized hydrophobic N-Boroxine-PDMS/SiO<sub>2</sub> layer\nimproves thermal stability and accelerates the deicing process. It\nachieves rapid deicing within 86 s under photothermal conditions and\n65 s with Joule heating while maintaining high optical transmittance.\nThe film improves the operational efficiency and thermal safety of\nequipment while preserving aesthetics and stability, thereby underscoring\nits broad suitability for advanced outdoor installations in cold environments.