Study on Plasmonic Nanoparticles-based Photothermal Films for Transparent Anti/de-icing

Currently, the utilization of solar energy based on the plasmon resonance effect is one of the economical, effective, and environmentally friendly ways to resolve issues of anti/de-icing. This study proposes a new transparent photothermal film based on plasmonic particles. The apparent radiation characteristics of the film are simulated via the combination of the Discrete Dipole Approximation method, Mie theory, and Monte Carlo method. The results show that the transparent photothermal film selectively transmits visible light and absorbs ultraviolet, blue-violet, and infrared light. It achieves a non-visible light absorbance of 82.2%, a blue light transmittance of 91.8%, and a non-blue light transmittance of 78.2%. With different surface wettabilities, the Monte Carlo ray tracing method is employed to simulate the light transfer through the ice droplets. The results show that the super-hydrophilic surfaces have a minimal impact on transmittance and haze, and the transmittance of hydrophobic surfaces is the lowest. This work provides a new option for transparent photothermal anti/de-icing materials. © 2024 Science Press. All rights reserved.