Electroluminescent and Light-Emitting Photopolymer Composites: Field Distribution, Optical Loss, Heat and Ageing

Photopolymer-based light-emitting structures couple electrical field distribution, optical transport, cure chemistry, heat generation and environmental exposure. A geometry that prints successfully can still fail optically because the emitting phase is poorly dispersed, the field is concentrated at interfaces, the cured matrix absorbs or scatters emitted light, or thermal and moisture exposure changes the emitter or polymer. This review defines a qualification architecture for electroluminescent and light-emitting photopolymer composites. It separates electrically driven emission from photoluminescent down-conversion, treats the printed polymer as both structural matrix and optical/electrical environment, and requires field, spectrum, temperature and ageing to be reported together. The central conclusion is non-compensatory: high initial luminance or photoluminescence cannot compensate for unstable interfaces, uncontrolled field concentration, optical attenuation, overheating or rapid environmental degradation.

ER-267 · Version 0.2.