ISSN:
1436-5073
Keywords:
Key words: SIMS, depth profiling, electroluminescence, conjugated polymers
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract. In the last years the development of light emitting electrochemical cells on a polymer base has made a great progress. They are extremely interesting due to their low cost, but still, problems concerning the stability and lifetime of these elements remain. The performance of light-emitting electrochemical cells (LEC) is strongly influenced by the inhomogeneous distribution of the three main components (light emitting polymer, ion conductive polymer, ionic molecules) in the device. The local ions distribution of lithium and triflate (short for the CF3SO3 − species) ions in a blend with the ionic conducting polymer poly(ethylene oxide) (PEO) and the conjugated polymer m-LPPP (methyl substituted poly(para phenylene)) throughout the polymer layer has been investigated by secondary ion mass spectroscopy (SIMS). Different combinations of top- and base-electrodes have been investigated and have been found to influence the distribution of the ions strongly.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s006040070002
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