Thin layer lightweight and ultrawhite hexagonal boron nitride nanoporous paints for daytime radiative cooling
Published in Cell Reports Physical Science, 2022
Ultrawhite cooling paint is created incorporating hBN nanoplatelets and nanopores
High solar reflectance of 97.9% is achieved with 150-μm thin and lightweight layer
Full daytime cooling under direct sunlight with 5°–6°C below ambient on average
Simulations reveal high scattering coefficient and strong backscattering