Article ID Journal Published Year Pages File Type
1264084 Organic Electronics 2011 7 Pages PDF
Abstract

Four kinds of commercial PEDOT dispersions have been used to realize ITO/PEDOT/PF6/Al polymeric OLEDs. The effects of the different PEDOT layers have been analyzed by the means of static current–voltage characterizations and admittance spectra. The measurements have revealed a good agreement with the Nicollian–Brews model returning the density of the interface traps; moreover the role of the trapping rate has been focused in terms of density of carriers available for the conduction.

Graphical abstractPeaks in capacitance spectra of PEDOT-PF6 based OLEDs have been modeled in terms of interface traps effect.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Four kinds of PEDOT have been tested for ITO/PEDOT/PF6/Al OLEDs. ► Admittance spectra have a good agreement with Nicollian–Brews model. ► Trap distribution parameters have been estimated. ► An interpretation in terms of trap constant time has been proposed.

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Physical Sciences and Engineering Chemistry Chemistry (General)
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