The Kinetics of Joined Action of Triplet-Triplet Annihilation and First-Order Decay of Molecules in T1 State in the Case of Nondominant First-Order Process: The Kinetic Model in the Case of Spatially Periodic Excitation
Figure 3
The influence of the modified initial conditions and the spatially periodic excitation. The main picture: the intensity of the delayed fluorescence of anthracene measured at 143 K. The upper curve presents spatially periodic excitation, lower—homogeneous. The ordinate is presented in logarithmic scale in order to expand the initial period where the differences between the temporal behavior of the homogeneously and spatially periodic excited sample are significant. The anti-Smoluchowski time range the extent of the delay where modified (Nickel’s) initial conditions introduce significant changes to the kinetics of diffusion controlled TTA, the Smoluchowski time range the extent of the delay where the temporal behavior of the sample is the same for both type of initial conditions. The time range of particular interest the extent of the Smoluchowski time range where the temporal behavior of homogeneously and spatially periodic excited sample are significantly different. Insert: the initial part of the main picture with the ordinate in linear scale.
