Effect of Phosphor Particle Size on Luminous Efficacy of Phosphor-Converted White LED
Journal of Lightwave Technology, Vol. 27, Issue 22, pp. 5145-5150 (2009)
Acrobat PDF (617 KB)
Abstract
In this paper, the influence of YAG:Ce phosphor particle sizes on the lumen output and the conversion efficiency of both in-cup phosphor and top remote phosphor LED packages are investigated with 3-D ray-tracing simulations. The lumen output and the conversion efficiency of both types of phosphor-converted (pc) white LED packages are dependent on the size of YAG:Ce particles. The lumen output and conversion efficiency of both types of pc-white LED packages are minimal at the phosphor particle size with the size parameter of around one and are highest at the particle size in micron size. The simulation results show that both in-cup and top remote phosphor packages have the highest lumen output and the highest conversion efficiency at the particle size of around 20 $\mu{\hbox {m}}$.
© 2009 IEEE
Citation
Nguyen The Tran, Jiun Pyng You, and Frank G. Shi, "Effect of Phosphor Particle Size on Luminous Efficacy of Phosphor-Converted White LED," J. Lightwave Technol. 27, 5145-5150 (2009)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-27-22-5145
You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
« Previous Article | Next Article »
OSA is a member of 