Singlet-Exciton Fusion in Molecular Solids: A Direct Subpicosecond Determination of Time-Dependent Annihilation Rates
1985; American Physical Society; Volume: 55; Issue: 12 Linguagem: Inglês
10.1103/physrevlett.55.1331
ISSN1092-0145
Autores Tópico(s)Photoreceptor and optogenetics research
ResumoThe first kinetic data displaying a time-dependent singlet-exciton-annihilation rate have been observed. Subpicosecond optical excitation of polycrystalline thin-film samples of $\ensuremath{\beta}$-hydrogen phthalocyanine resulted in excitonic saturation of the crystal lattice. The initial exciton decay yields the only unambiguous measurement of a characteristic annihilation interaction rate for molecular excitons on adjacent lattice sites.
Referência(s)