Large molecules schematic level diagram

Fig. 2. Schematic level diagram for a large molecule showing singlet (S ) and triplet (T ) manifolds, radiative ( — >) and nonradiative transitions Absorption cross-sections... 

Fig. 3. Schematic diagram of levels in a one-dimensional mixed crystal containing several guest molecules. One level from each manifold moves out of the band, finally coalescing at large trap depths.

Figure 15.1 Jablonski diagram illustrating the transitions between the electronic states in a polyatomic molecule, in a condensed phase. The vibrational levels in each electronic state are only schematically represented, because there are likely to be a very large number of vibrational modes that exist in a multi-dimensional surface. The wavy hnes represent the vibrational relaxation within the electronic states.

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