Organic and Macromolecular Chemistry
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Organic and Macromolecular Chemistry |
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| 114 | Dicker, G.; Hohenau, A.; Graupner, W.; Tasch, S.;
Graupner, M.; Hermetter, A.; Schlicke, B.; Schulte, N.; Schlüter,
A.D.; Scherf, U.; Müllen, K.; Leising, G. |
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| Keywords | Photo luminescence, excitation energy transfer, quantum yield, decay time, poly(para-phenylene | |
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| Abstract | We are investigating the photophysics of a conjugated, red emitting molecule (RS-19) as a guest in a blue emitting laddertype poly(para-phenylene) matrix (mLPPP) by means of steady state and cross-correlation fluorescence spectroscopy. We observe a very efficient excitation energy transfer from mLPPP to RS-19. Through varying the concentration of the red emitter in the host, we demonstrate changes in quantum yields (QY), energy transfer efficiencies (ETE), and decay times of the photo-generated species. The observed internal color conversion can be exploited in white light emitting diodes. |