Temperature-dependent singlet exciton fission observed in amorphous rubrene films

Singlet fission from upper excited singlet states and polaron formation in rubrene film

“…In rubrene lm, suppression of singlet ssion at low temperatures was reported. [33][34][35] Earlier, it was also demonstrated in rubrene crystal. 27 Zhang's group reported the competition between singlet ssion, uorescence and dissociation in rubrene doped amorphous lms.…”

Rational design of doubly-bridged chromophores for singlet fission and triplet–triplet annihilation

“…1,2 The electronic coupling relevant to SF and TTA can be controlled by changing the crystal structure through chemical modications. 15,19,22,[34][35][36][37][38][39][40] As another way of controlling electronic coupling, the use of covalently-linked systems is promising because the electronic coupling can be designed at the molecular level. [41][42][43][44][45][46][47][48][49][50][51][52][53][54][55][56][57] In the previous study, we proposed several ways of tuning electronic coupling concerning SF based on the quantum interference.…”

Relation between molecular packing and singlet fission in thin films of brominated perylenediimides

“…scitation.org/journal/jcp rubrene, 23 these activation energies have been attributed to thermally activated nonradiative recombination or singlet fission. However, as singlet fission in PDIs is known to occur on a sub-ps 1 to ps 2 time scale and the time resolution of our photoluminescence setup is 50 ps, it may be that SF is too fast to be responsible for the observed activation energy.…”