Combined machine learning/ quantum chemistry finds cost-effective, stable blue OLED emitter with 35.2% external quantum efficiency

https://www.eurekalert.org/news-releases/1137086

"blue OLED pixels rely on fluorescent emitters capped at low efficiency or metal-based phosphorescent emitters exhibiting rapid thermal/ photochemical degradation... overcome training machine learning models on virtual molecular structures, predicting key optoelectronic properties/ identifying those with optimal thermally activated delayed fluorescence... high color purity. long-lifespan, energy-efficient... enables the rapid discovery of viable, metal-free blue emitter materials"