As devices transition to mini LED and micro LED, the industry needs down converting materials that perform at nano to submicron scales. Nanophosphors such as YAG:Ce are strong candidates, yet conventional nanocrystalline YAG has struggled with clustered particles, low absorption and quantum efficiency, and reliability concerns.
At Seaborough we address this with an annealing approach that uses post synthetic treatments, including baking the nanocrystals at temperatures above 1000 °C. The result is high quality YAG:Ce nanophosphors with tunable particle sizes below 20 nanometers, near unity quantum yields, and no clustering. Through Crystalight®, these properties open up new possibilities in advanced lighting and in mini LED and micro LED applications such as backlight displays for tablets and monitors, wearables and augmented reality, as well as high power LED systems for outdoor and automotive use.