THERMALLY ACTIVATED DELAYED FLUORESCENCE ORGANIC LIGHT EMITTING DIODE HAVING HOST MATRIX POLARITY CO-DOPING

摘要

Disclosed herein is a composition comprising a host material; a fluorescent emitter, wherein the host material and the emitter are different from each other; and a codopant comprising a small molecule that has a polarity that is different from that of the host material; where the codopant modulates an energy gap of the fluorescent emitter to enhance thermally activated delayed fluorescence of the fluorescent emitter in a solid state. Disclosed herein too is a method comprising blending together a solvent, a host material, a fluorescent emitter, and a codopant, wherein the host material and the emitter are different from each other; and wherein the codopant comprising a small molecule that has a polarity that is different from that of the host material; where the codopant modulates an energy gap of the fluorescent emitter to enhance thermally activated delayed fluorescence of the fluorescent emitter in a solid state.