Title of article :
Femtosecond excited-state dynamics in N,N-dimethylaminobenzylidene-1,3-indandione (DMABI) films
Author/Authors :
Jursenas، نويسنده , , S. and Gulbinas، نويسنده , , V. and Kuprionis، نويسنده , , Z. and Kananavicius، نويسنده , , R. and Kodis، نويسنده , , G. and Gustavsson، نويسنده , , T. and Mialocq، نويسنده , , J.-C. and Valkunas، نويسنده , , L.، نويسنده ,
Issue Information :
دوماهنامه با شماره پیاپی سال 2000
Abstract :
Ultrafast exciton dynamics in polycrystalline films of dipolar N,N-dimethylaminobenzylidene 1,3-indandione (DMABI) molecules was studied by femtosecond luminescence upconversion and transient absorption techniques. An enhanced nonradiative relaxation of the excitons, taking place on the subpicosecond time scale, was observed. It was attributed to the initial localisation and thermalisation of the self-trapped excitons. One-dimensional exciton–exciton annihilation was observed under high excitation conditions.
Keywords :
excitons , Luminescence , annihilation , Self-trapping , femtosecond spectroscopy , Organic molecular crystals
Journal title :
Synthetic Metals
Journal title :
Synthetic Metals
