Author/Authors :
Radloff، نويسنده , , W. and Freudenberg، نويسنده , , Th. and Stert، نويسنده , , V. and Ritze، نويسنده , , H.-H. and Noack، نويسنده , , F. and Hertel، نويسنده , , I.V.، نويسنده ,
Abstract :
The size dependence of the internal conversion efficiency for the optically excited electronic S2-state in benzene(NH3)n clusters has been studied. The analysis of pump-probe experiments with 160 fs laser pulses reveals a significant enhancement of the S2 to S1 conversion probability with the number n of ammonia molecules in the cluster. In contrast, the total deactivation rate of the S2-state by internal conversion of about 1013 s−1 is nearly independent of the cluster size.
