Predicting Operational Stability for Organic Light‐Emitting Diodes with Exciplex Cohosts

Organic light-emitting diodes with a spacer enhanced exciplex emission

Highly Directional Emission and Beam Steering from Organic LightEmitting Diodes with a Substrate Diffractive Optical Element

In planar OLED structures, a signifi cant fraction of the internal light emission is trapped in guided modes. This trapped light is a major limitation on the external quantum effi ciency, and a number of studies have integrated photonic microstructures into OLEDs to improve the device effi ciency by extracting trapped light such as the substrate modes, [ 3 ] the waveguide modes [ 4 ] and the su...

Corrigendum: Operational stability enhancement in organic light-emitting diodes with ultrathin Liq interlayers

Organic light-emitting diodes (OLEDs) under constant current operation suffer from a decrease of luminance accompanied by an increase of driving voltage. We report a way to greatly improve the stability of OLEDs having a green emitter exhibiting thermally activated delayed fluorescence (TADF), (4s,6s)-2,4,5,6-tetra(9H-carbazol-9-yl) isophthalonitrile (4CzIPN), by introducing ultrathin (1 to 3 n...

Exciplex Electroluminescence of the New Organic Materials for Light-Emitting Diodes

Highly efficient exciplex organic light-emitting diodes incorporating a heptazine derivative as an electron acceptor.

Highly efficient exciplex systems incorporating a heptazine derivative () as an electron acceptor and 1,3-di(9H-carbazol-9-yl)benzene () as an electron donor are developed. An organic light-emitting diode containing 8 wt% : as an emitting layer exhibits a maximum external quantum efficiency of 11.3%.