Author/Authors :
Rossi، نويسنده , , L. G. Bongiovanni، نويسنده , , G. and Borghesi، نويسنده , , A. and Lanzani، نويسنده , , G. and Kalinowski، نويسنده , , J. and Mura، نويسنده , , A. and Tubino، نويسنده , , R.، نويسنده ,
Abstract :
We used a variety of transient and quasi steady state photomodulation techniques for studying the photoexcitations in films of linear transquinacridone. We show that the initial Frenkel exciton self traps into a mixed covalent-ionic excimeric state within 5 ps. The subsequent relaxation is understood in terms of ionization and recombination of charge transfer states.
Keywords :
Photoluminescence , Time-resolved fast spectroscopy , Photoinduced absorption spectroscopy , Organic semiconductors based on conjugated molecules (not polymers)
