Abstract
How to improve the luminescence efficiency of PiG conversion materials has become a hot topic and challenge in recent years for high-efficiency white LD (w-LD). In this paper, a low-temperature and high-pressure technology is raised, which successfully synthesized the PiG composed of Y3Al5O12: Ce3+ (YAG) phosphor and SiO2–Al2O3–K2O–Na2O glass frit. The hosts possess a relatively perfect and rigorous structure with few pores benefiting from this gentle preparation method. In addition, three configurations of transmission, reflection, and total-emission are adopted in w-LD, which can achieve the highest luminous efficiency of 77.78 lm/W, 178.72 lm/W, and 206.35 lm/W, respectively. Compared with the traditional high-temperature and normal-pressure method, the saturation luminous flux increases by 4.8%, 13.7%, and 14.3% for 10%, 20%, 30% content phosphor PiG, respectively. This technology shows the significant application potential in preparing high-brightness and high-efficiency w-LDs.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
