Effects of Stokes shift and Purcell enhancement on fluorescence-assisted radiative cooling
Xue Ma, Yang Fu, Arsenii S. Portniagin, Ning Yang, Danjun Liu, Andrey L. Rogach, Jian‐Guo Dai, Dangyuan Lei
Abstract
A Purcell factor of 2.6, obtained by matching the emission wavelength of phosphor with the Mie scattering resonance of TiO 2 nanoparticles, and small stokes shift improve the effective solar reflectance of fluorescent cooling coatings by up to ∼4%.
Topics & Concepts
Mie scatteringPhosphorFluorescenceStokes shiftMaterials scienceWavelengthScatteringOpticsRadiative transferOptoelectronicsReflectivityNanoparticleLight scatteringPhysicsNanotechnologyThermal Radiation and Cooling TechnologiesOptical properties and cooling technologies in crystalline materialsUrban Heat Island Mitigation