Fullerene doped glasses

Optical glasses doped with a fullerene mixture of C₆₀/C ₇₀ were made in our lab. Three peaks, corresponding to C ₆₀, C₇₀, and a modified fullerene (possibly its oxide), respectively, were found in the chromatogram of high performance liquid chromatography (HPLC) analysis of the 0.1-wt % fullerene doped phosphate glass. Depending on the doping procedure and impurity, weak to strong interacting between C₆₀ and its environment was found by the nuclear magnetic resonance study. For both phosphate and fluorophosphate glasses with 0.01-wt % fullerene mixture doping, the eigen UV absorption edge showed a significant blueshift, indicating that the bonding between the nonbridging oxygen in these glasses was subjected to a strong change due to the fullerene doping.