1,3,5‐Triazine‐Functionalized Thermally Activated Delayed Fluorescence Emitters for Organic Light‐Emitting Diodes

The 1,3,5-triazine electron acceptor has become one of the most popular building blocks for design thermally activated delayed fluorescence (TADF) materials. Many TADF strategies are first applied in compounds that contain triazines, and there numerous examples organic light-emitting diodes (OLEDs) with triazine-containing emitters show high efficiencies long operating lifetimes. A comprehensive review is provided. This organized according to triazine-derived structural motifs, such as number position electron-donor groups donor–acceptor-type emitters, π-bridging linkers employed, orientation control transition dipole moment, chiral through-space charge-transfer emitters. structure their optoelectronic properties corresponding performance OLED devices correlated.