Please use this identifier to cite or link to this item:
|Title:||Efficient energy transfer to achieve narrow bandwidth red emission from Eu3+-grafting conjugated polymers|
|Authors:||Pei, J. |
|Citation:||Pei, J., Liu, X.-L., Yu, W.-L., Lai, Y.-H., Niu, Y.-H., Cao, Y. (2002-09-10). Efficient energy transfer to achieve narrow bandwidth red emission from Eu3+-grafting conjugated polymers. Macromolecules 35 (19) : 7274-7280. ScholarBank@NUS Repository. https://doi.org/10.1021/ma020529b|
|Abstract:||A convenient approach to novel Eu3+-grafting conjugated polymers to achieve sharp red emission for polymeric light emitting diodes (PLEDs) has been developed in this contribution. The structure of polymer 1 is verified by FT-IR, 1H, 13C NMR and elemental analysis. The results indicate that efficient intramolecular Föster energy transfer depends on the overlap between the fluorescent spectrum of polymer 1 and absorption spectrum of Eu3+ chelates. Eu(DBM)3 is obviously the best one for accepting energy from polymer 1 among three Eu3+ chelates to exhibit the sharp red emission. The investigation also shows that the efficiency by energy transfer relies on the content of Eu3+ in the complexes. The investigations on the photophysical and electrochemical properties also show that the HOMO and LUMO energy levels and the band gap of complexes have no alteration with the attachment of the Eu3+ chelate in comparison with those of polymer 1 due to the Eu3+ chelate at the side chain of the whole molecule. The pure red electroluminescence is achieved from the fabrication of PLEDs using complex 5 as the active layer with the configuration of ITO-PVK/complex 5/Ba/Al.|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Jul 13, 2018
WEB OF SCIENCETM
checked on Jun 6, 2018
checked on Jul 6, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.