Time-resolved peotoluminescences of fullerence C/sub 60/

Summary form only given. Steady-state photoluminescence (PL) and time-resolved PL of fullerene C/sub 60/ polycrystal and benzene solution are investigated. The PL of solid C/sub 60/ shoves a relatively strong peak at 1.71 eV and a weak broad band centers at 1.5 eV, that of C/sub 60/ in benzene showes two peakd at 1.82 eV and 1.73 eV excited under argon laser lines. Solid C/sub 60/ shows a dominatantly fast decay process of 140 picosecond and a slow process in I nanosecond regime, C/sub 60/ benzene solution shows a decay process of 1.4 nanosecond measured by a streak camera. The origins of PL are discussed based on these experiment results.