The Nobel Prize-winning blue LED was a breakthrough, but the industry is already researching the next revolution: new semiconductor materials for light emission. Technologies like perovskite LEDs and quantum dot LEDs show promise for achieving superior color purity, higher efficiency, and potentially lower manufacturing costs than current indium gallium nitride-based LEDs. While stability and longevity for general lighting use remain significant hurdles in the lab, the potential is vast. These materials could enable ultra-high-definition color rendering, new flexible light source formats, and more sustainable production processes. Although a commercial reality for lighting may be years away, this foundational R&D ensures the industry’s continuous evolution beyond the current technological plateau.
Solid-State Lighting 2.0: The Quest for New Materials Beyond Blue LEDs
