RGB
Arrays for Micro-Light-Emitting Diode Applications
Using Nanoporous GaN Embedded with Quantum Dots
Posted on 2020-06-24 - 15:38
The
multiple light scattering of nanoporous (NP) GaN was systematically
studied and applied to the color down-conversion for micro-light-emitting
diode (LED) display applications. The transport mean free path (TMFP)
in NP GaN is 660 nm at 450 nm (light wavelength), and it decreases
with a decreasing wavelength. It was observed that the short TMFP
of the NP GaN increased the light extinction coefficient at 370 nm
by 11 times. Colloidal QDs were loaded into a half 4″ wafer
scale NP GaN, and 96 and 100% of light conversion efficiencies for
green and red were achieved, respectively. By loading green and red
QDs selectively into NP GaN mesas, we demonstrated the RGB microarrays
based on the blue-violet pumping light with green and red color converting
regions.
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Kang, Jin-Ho; Li, Bingjun; Zhao, Tianshuo; Johar, Muhammad Ali; Lin, Chien-Chung; Fang, Yen-Hsiang; et al. (2020). RGB
Arrays for Micro-Light-Emitting Diode Applications
Using Nanoporous GaN Embedded with Quantum Dots. ACS Publications. Collection. https://doi.org/10.1021/acsami.0c00839
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AUTHORS (11)
JK
Jin-Ho Kang
BL
Bingjun Li
TZ
Tianshuo Zhao
MJ
Muhammad Ali Johar
CL
Chien-Chung Lin
YF
Yen-Hsiang Fang
WK
Wei-Hung Kuo
KL
Kai-Ling Liang
SH
Shu Hu
SR
Sang-Wan Ryu
JH
Jung Han