Electronic Two-Transition-Induced Enhancement of Emission Efficiency in Polymer Light-Emitting Diodes.

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.

SUBMITTER: Chen RA 

PROVIDER: S-EPMC5512805 | biostudies-other | 2013 Mar

REPOSITORIES: biostudies-other