Transparent nanocellulose metamaterial enables controlled optical diffusion and radiative cooling
Sampath Gamage, Evan S. H. Kang, Christina Åkerlind, Samim Sardar, Jesper Edberg, Hans Kariis, Thomas Ederth, Magnus Berggren, Magnus P. Jonsson
Abstract
We embedded IR-resonant microparticles as visible scatterers and thermal emitters in a transparent nanocellulose composite, to form a metamaterial that provides radiative cooling while simultaneously functioning as an optical diffuser.
Topics & Concepts
NanocelluloseMaterials scienceRadiative coolingMetamaterialDiffuser (optics)Radiative transferOptoelectronicsThermalComposite numberDiffusionThermal radiationTransmittanceComposite materialOpticsChemical engineeringCelluloseThermodynamicsLight sourcePhysicsEngineeringThermal Radiation and Cooling TechnologiesUrban Heat Island MitigationRadiative Heat Transfer Studies