Mie-optimized PMMA particles for fully polymer-based radiative cooling coatings with high reflectance and hydrophobicity

PMMA–PDMS (A 0.7 S 0.3 ) coating has 96.9% reflectance and 94.0% emissivity, and has a 111.4° water contact angle, showing hydrophobicity. Most importantly, PMMA–PDMS (A 0.7 S 0.3 ) coating lowers the temperature by 8.60 °C below ambient.