Issue Eur. Phys. J. Appl. Phys. Volume 37, Number 1, January 2007 Page(s) 57 - 59 Section Nanomaterials and Nanotechnologies DOI 10.1051/epjap:2006154 Published online 13 December 2006

Eur. Phys. J. Appl. Phys. 37, 57-59 (2007)
DOI: 10.1051/epjap:2006154

Energy transfer from polyfluorene based polymer to europium complex

P.K. Kristensen¹, T.G. Pedersen¹, Kaizheng Zhu² and Donghong Yu<sup>2

1</sup>  Department of Physics and Nanotechnology, Aalborg University, Skjernvej 4a, 9220 Aalborg East, Denmark
²  Department of Life Sciences, Aalborg University, Sohngaardsholmsvej 57, 9000 Aalborg, Denmark

kjaer@physics.aau.dk

(Received: 5 September 2006 / Accepted: 13 October 2006 / Published online: 13 December 2006)

Abstract
We report energy transfer from polyfluorene containing binaphthyl, P(BiNDO-FO3), to the europium complex, Eu(dnm)₃phen. The P(BiNDO-FO3) has an electroluminescence (EL) peak at 422 nm where as pure polyfluorene (PF) has an EL peak at 438 nm. We have doped both polymers and report energy transfer in P(BiNDO-FO3), which is not present in PF. This is due to overlap of the absorption spectrum in the Eu(dnm)₃phen with the emission spectrum of the P(BiNDO-FO3) while there is no overlap with the emission spectrum of PF.

PACS
36.20.-r - Macromolecules and polymer molecules.
82.20.Rp - State to state energy transfer.

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