Color‐Tunable Photoluminescent Fullerene Nanoparticles

Abstract
Highly water‐soluble and color‐tunable photoluminescent fullerene nanoparticles are synthesized by using tetraethylene glycol (TEG) and lithium hydroxide as a catalyst. The maximum PL emission changes depend on the contents of the remaining π‐conjugation in oxidized C60, which is partially covalently conjugated with TEG. The PL behavior is attributed to an electronic transition change due to the distortion of symmetrical C60.