On the fluorescence of C₆₀ at room temperature

The fluorescence properties of C₆₀ in different organic solvents have been investigated at room temperature. Three fluorescence emission centers are discovered and ascribed to different aggregations of C₆₀ in solvent. A series of blue fluorescence peaks centered at 440 nm derive from C₆₀ nanoparticles; a distinctive yellow-green fluorescence band in 575 nm region arises from the aggregates of C₆₀ nanoparticles; a more informative salmon fluorescence band around 700 nm originates from C ₆₀ microcrystals. And the distinct configurations of C₆₀ aggregations are closely associated with the characteristic interaction between C₆₀ and solvent molecules.