Comment on "Enhancement of flip-chip white light-emitting diodes with a one-dimensional photonic crystal".
We show that research presented in Opt. Lett.34, 301 (2009)OPLEDP0146-959210.1364/OL.34.000301 applied questionable phosphor definitions and a questionable simulation procedure for light-emitting diodes. Our simulation indicates that a one-dimensional photonic crystal is beneficial for color control but cannot improve the light extraction as asserted in that Letter.
Liu
Zong-Yuan
ZY
MOEMS Division, WNLO, Huazhong University of Science and Technology, Wuhan, 430074 China.
Liu
Sheng
S
Wang
Kai
K
Luo
Xiao-Bing
XB