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Efficient hybrid active layers for OLEDs based on polyfluorene and ZnO nanoparticles

Published online by Cambridge University Press:  02 September 2010

A. N. Aleshin*
Affiliation:
Ioffe Physical-Technical Institute of the Russian Academy of Sciences, 26 Polytechnicheskaya Str., St. Petersburg, 194021, Russia
E. L. Alexandrova
Affiliation:
Ioffe Physical-Technical Institute of the Russian Academy of Sciences, 26 Polytechnicheskaya Str., St. Petersburg, 194021, Russia
I. P. Shcherbakov
Affiliation:
Ioffe Physical-Technical Institute of the Russian Academy of Sciences, 26 Polytechnicheskaya Str., St. Petersburg, 194021, Russia
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Abstract

We report on the investigation of the electrical and optical properties of hybrid active layers for multicolor and white light-emitting organic devices consisting of a conjugated polymer – polyfluorene (PFO) mixed with inorganic nanoparticles. We have analyzed the behavior of absorption, photoluminescence (PL) spectra as well as electroluminescence (EL) of PFO-based hybrid films after introduction of inorganic nanoparticles having acceptor properties (ZnO, Si) to compare their emission efficiency. We have demonstrated the possibility to tune the PL/EL emission color from green to blue by changing the PFO/ZnO nanoparticles concentration ratio with obtaining the white color at intermediate concentration ratios.

Type
Research Article
Copyright
© EDP Sciences, 2010

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