High Efficiency Green-Emitting LuAG:Ce Ceramic Phosphors for Laser Diode Lighting

Lu3Al5O12:Ce3+ (LuAG:Ce3+) ceramic phosphors (CPs) are regarded as the most promising green color converter and play a key role in high quality white light in the next-generation laser diode (LD) lighting. High efficient LuAG:Ce3+ CPs are still urgent for high luminous efficacy (LE) LD lighting devices. By designing the Ba2+-Si4+ pair to keep charge balance and annealing in air to remove oxygen vacancy defects, the luminescent properties of LuAG:Ce CPs are greatly enhanced. The LE is promoted to 216.9 lm W-1, which is the best performance of LuAG:Ce in LD lighting so far. Strategies for optimizing LuAG:Ce3+ CPs are detailed. It is believed that this work makes a big step and the proposed strategies will inspire more researchers to approach high performance of Al-based garnet CPs and accelerate the development of LD lighting.

Automated summary

LuAG:Ce3+ ceramic phosphors play a vital role in LD lighting for high quality white light, with the potential to achieve the best performance by improving luminescent properties and utilizing innovative pair design. Strategies for optimizing LuAG:Ce3+ CPs have been detailed, aiming to inspire further research in the field of high-performance Al-based garnet CPs and accelerate the development of LD lighting.