Abstract
A new blue-emitting phosphor, (), was synthesized through a solid-state reaction. The structural and optical properties of phosphor, in addition to its thermal quenching and fabrication of white LEDs (WLEDs), were investigated for the first time. The phosphor showed broad blue emission, with a maximum at under near-ultraviolet excitation due to transition of the ion. The critical distance was calculated to be 12 Å using the critical concentration of and Dexter’s theory for energy transfer. WLEDs were fabricated by blending , commercial , and phosphors, showed a high color rendering index of 88 at a correlated color temperature of 4134 K under a forward bias current of 100 mA.
© 2014 Optical Society of America
Full Article | PDF ArticleMore Like This
Kyoung Hwa Lee, Seung Hyok Park, Ho Shin Yoon, Yong-Il Kim, Ho Gyeom Jang, and Won Bin Im
Opt. Express 20(6) 6248-6257 (2012)
Ji Wook Moon, Jin Sung Kim, Bong Gul Min, Hyun Min Kim, and Jae Soo Yoo
Opt. Mater. Express 4(10) 2174-2181 (2014)
Bin Li, G. Annadurai, Liangling Sun, Jia Liang, Shaoying Wang, Qi Sun, and Xiaoyong Huang
Opt. Lett. 43(20) 5138-5141 (2018)