Embedding of IrQ(ppy)2 organometallic compounds in polypyrrole conducting polymer for OLED’s applications

• Electrochemical deposition of polypyrrole:IrQ(ppy)2 thin layers.
• Uniform dispersion of the organometallic compound in the polymer matrix.
• Good electric conductivity of the polypyrrole:IrQ(ppy)2 thin layers.

Conducting polypyrrole:IrQ(ppy)2 thin films were obtained by electrochemical method which ensure uniform dispersion of the organometallic in the polymer matrix. A thin layer of about 50 nm polypyrrole:IrQ(ppy)2 thin films were deposited on the ITO/glass substrate and used for spectroscopic, structural, and electric characterization. The photoluminescence spectrum of polypyrrole:IrQ(ppy)2 have shown the two main emissions of IrQ(ppy)2 at 2.44 eV (508 nm) and 2 eV (620 nm) besides of the polypyrrole weak emission centered at 2.55 eV (485 nm). The electric conductivity of the doped polypyrrole thin layer has almost the same conductivity with the undoped polypyrrole thin film suggesting an homogenous polypyrrole:IrQ(ppy)2 composite which can be used as emissive layer in the OLED’s structures.

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