Can Rare-Earth Elements be replaced in the converting phosphors used in white warm LEDs?
Can Rare-Earth Elements be replaced in the converting phosphors used in white warm LEDs?
Current high-performance white LEDs rely on phosphors containing rare earth elements (REEs). However, with China controlling nearly all REE extraction (97%), prices have soared in recent years. This has forced European manufacturers to move production to China, creating a critical situation for the European Union (see references below).
To address this challenge, our research focuses on developing novel red-emitting phosphors. These phosphors will be thermally stable and composed of multi-component oxides and oxyfluorides, crucially without any REEs. These advancements aim to improve warm white LED technology.