Polymer Featuring Thermally Activated Delayed Fluorescence as Emitter in Light-Emitting Electrochemical Cells.

ABSTRACT: Semiconducting polymers that feature thermally activated delayed fluorescence (TADF) can deliver a much desired combination of high-efficiency and metal-free electroluminescence and cost-efficient solution-based fabrication. A TADF polymer is thus a very good fit for the emitting compound in light-emitting electrochemical cells (LECs) because the commonly employed air-stabile and few-layer LEC architecture is well suited for such solution-based fabrication. Herein we report on the first LEC device based on a TADF polymer as the emitting species, which delivers a luminance of 96 cd m^-2 at 4 V and a current efficacy of 1.4 cd A^-1 and >600 cd m^-2 at 6 V, which is competitive with the performance of multilayer organic light-emitting diodes based on the same TAD

SUBMITTER: Lundberg P 

PROVIDER: S-EPMC7460548 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature