Management of singlet and triplet excitons in a single emission layer: a simple approach for a high-efficiency fluorescence/phosphorescence hybrid white organic light-emitting device.

Ye, Jun; Zheng, Cai-Jun; Ou, Xue-Mei; Zhang, Xiao-Hong; Fung, Man-Keung; Lee, Chun-Sing · Adv Mater · 2012

basic_science · Level V

Where this comes from

Abstract

A high-efficiency single-emission-layer (EML) hybrid white organic light emitting device is fabricated based on an ideal sky-blue fluorophor, DADBT, using a novel doping concentration regulation strategy, which effectively separates and respectively utilizes the singlet and triplet excitons in the single-EML. The white device shows excellent electroluminescence performance with maximum total efficiencies of 26.6%, 53.5 cd A(-1) and 67.2 lm W(-1) .

Medical subject headings