Title :
Gradient refractive index layer for improving the optical extraction efficiency of LED package with quantum dot phosphor
Author :
Shin, Min-Ho ; Hong, Hyun-Guk ; Kim, Young-Ioo
Author_Institution :
Sch. of Mech. Eng., Yonsei Univ., Seoul, South Korea
fDate :
Oct. 30 2011-Nov. 2 2011
Abstract :
The layer structure of gradient refractive index was proposed to improve the extraction efficiency of white LEDs based on quantum dot phosphor. Ray-tracing simulation shows that the extraction efficiency increases by 7~14% with new layer structure of refractive index difference of 0.15 compared to the remote phosphor structure.
Keywords :
electronics packaging; light emitting diodes; phosphors; quantum dots; ray tracing; refractive index; LED package; gradient refractive index layer; optical extraction efficiency; quantum dot phosphor; ray tracing; white LED; Educational institutions; Light emitting diodes;
Conference_Titel :
Microopics Conference (MOC), 2011 17th
Conference_Location :
Sendai
Print_ISBN :
978-1-4577-1344-6
