Highly efficient color-stable deep-blue multilayer PLEDs: preventing PEDOT:PSS-induced interface degradation

Sebastian Nau; Niels Schulte; Stefanie Winkler; Johannes Frisch; Antje Vollmer; Norbert Koch; Stefan Sax; Emil J W List

doi:10.1002/adma.201300832

Highly efficient color-stable deep-blue multilayer PLEDs: preventing PEDOT:PSS-induced interface degradation

Adv Mater. 2013 Aug 27;25(32):4420-4. doi: 10.1002/adma.201300832. Epub 2013 Jun 18.

Authors

Sebastian Nau¹, Niels Schulte, Stefanie Winkler, Johannes Frisch, Antje Vollmer, Norbert Koch, Stefan Sax, Emil J W List

Affiliation

¹ NanoTecCenter Weiz Forschungsgesellschaft mbH, Franz-Pichler Strasse 32, Weiz, Austria.

PMID: 23776150
DOI: 10.1002/adma.201300832

Abstract

Highly efficient and stable blue light emission is observed in novel copolymers that are produced from specially designed building blocks. A PEDOT:PSS-induced chemical degradation of the polymer light-emitting diodes (PLEDs) is identified at the interface, and it is found to be accompanied by a shift in the emission color. A method to prevent this highly undesirable interaction is presented.

Keywords: 4-ethylenedioxythiophene) poly(styrenesulfonate) (PEDOT:PSS); interface degradation; multilayers; poly(3; polymer light-emitting diodes; polymer materials.

Publication types

Research Support, Non-U.S. Gov't