Document Type

Article

Abstract

With the development of experimental techniques, effective injection and transportation of electrons is proven as a way to obtain polymer light-emitting diodes (PLEDs) with high quantum efficiency. This paper reveals a valid mechanism for the enhancement of quantum efficiency in PLEDs. When an external electric field is applied, the interaction between a negative polaron and triplet exciton leads to an electronic two-transition process, which induces the exciton to emit light and thus improve the emission efficiency of PLEDs.

Publication Date

January 2013

ISSN

19961944

Publication Title

Materials

Volume

6

Issue

3

First Page

886

Last Page

896

DOI

10.3390/ma6030886

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