Journal
OPTICAL MATERIALS EXPRESS
Volume 4, Issue 1, Pages 121-128Publisher
OPTICAL SOC AMER
DOI: 10.1364/OME.4.000121
Keywords
-
Categories
Funding
- National Science Council [NSC 100-3113-E-110-003-CC2]
- Advanced Optoelectronic Technology Center, National Cheng Kung University
Ask authors/readers for more resources
A novel Ce3+:YAG doped sodium glass (CeYDG) with low-melting temperature of 693 degrees C and high internal quantum yield of 68% for white-light-emitting diodes (WLEDs) is demonstrated. The glass phosphor possesses glass transition temperatures of 578 degrees C which exhibits a better thermal stability to overcome the thermal limitation of conventional Ce3+:YAG doped silicone due to low thermal stability of around 150 degrees C. To the best of authors' knowledge, this is the highest quantum yield yet reported for thermally stable glass phosphors. The high quantum yield is achieved by lowering the sintering temperature of 700 degrees C for glass phosphor, which substantially reduces Si-Ce3+:YAG inter-diffusion, evidenced by high-resolution transmission electron microscopy (HRTEM). This new CeYDG with high-quantum yield is essentially beneficial to the applications for next-generation solid-state lighting in the area where high power and absolute reliability are required and where silicone simply could not stand the heat or other deteriorating factors due to its low thermal stability. (C) 2013 Optical Society of America
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available