Abstract
We report time-resolved photoluminescence of two polythiophene derivatives with different chain packing. Emission of inter-chain aggregates is distinguished from that of intra-chain singlet excitons. The aggregate luminescence is shifted towards lower energies relative to that of intra-chain exciton by 0.17 eV, and the Huang-Rhys factor of the coupling to the intra-chain C double bondC vibration is S = 1.5. The excitonic coupling in aggregates is of intermediate strength.
Original language | English |
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Pages (from-to) | 603-604 |
Number of pages | 2 |
Journal | Synthetic Metals |
Volume | 119 |
Issue number | 1-3 |
Publication status | Published - 15 Mar 2001 |
Event | 16th International Conference on Science and Technology of Synthetic Metals (ICSM 2000) - GASTEIN, Austria Duration: 15 Jul 2000 → 21 Jul 2000 |
Keywords
- photoluminescence
- time-resolved fast spectroscopy
- polythiophene and derivatives
- CONJUGATED POLYMERS
- PAIRS