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Biodegradable Polycaprolactone as Ion Solvating Polymer for Solution-Processed Light-Emitting Electrochemical Cells.


ABSTRACT: In this work, we demonstrate the use of the biodegradable polymer polycaprolactone (PCL) as the ion solvating polymer in solution-processed light-emitting electrochemical cells (LEC). We show that the inclusion of PCL in the active layer yields higher ionic conductivities and thus contributes to a rapid formation of the dynamic p-i-n junction and reduction of operating voltages. PCL shows no phase separation with the emitter polymer and reduces film roughness. The devices show light-emission at voltages as low as 3.2?V and lifetimes on the order of 30?h operating above 150?cd m-2 with turn-on times <20?s and current and luminous efficacies of 3.2?Cd A-1 and 1.5?lm W-1 respectively.

SUBMITTER: Jurgensen N 

PROVIDER: S-EPMC5095640 | biostudies-literature | 2016 Nov

REPOSITORIES: biostudies-literature

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Biodegradable Polycaprolactone as Ion Solvating Polymer for Solution-Processed Light-Emitting Electrochemical Cells.

Jürgensen Nils N   Zimmermann Johannes J   Morfa Anthony John AJ   Hernandez-Sosa Gerardo G  

Scientific reports 20161104


In this work, we demonstrate the use of the biodegradable polymer polycaprolactone (PCL) as the ion solvating polymer in solution-processed light-emitting electrochemical cells (LEC). We show that the inclusion of PCL in the active layer yields higher ionic conductivities and thus contributes to a rapid formation of the dynamic p-i-n junction and reduction of operating voltages. PCL shows no phase separation with the emitter polymer and reduces film roughness. The devices show light-emission at  ...[more]

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