TY - JOUR
T1 - Dual pattern for enhancing light extraction efficiency of white organic light-emitting diodes
AU - Kim, Kwan
AU - Han, Kyoung Hoon
AU - Kim, Yang Doo
AU - Huh, Daihong
AU - Han, Yoonjay
AU - Lee, Heon
AU - Kim, Jang Joo
N1 - Funding Information:
This research was supported by the Pioneer Research Center Program through the National Research Foundation of Korea funded by the Ministry of Science, ICT & Future Planning ( NRF-2013M3C1A3063046 ).
Publisher Copyright:
© 2018
PY - 2018/6
Y1 - 2018/6
N2 - Nano and micro-patterns (dual patterns) were introduced on a glass substrate as an extraction layer to enhance the light extraction efficiency of white organic light-emitting diodes (WOLEDs). The dual-patterned glass was fabricated by thermal evaporation, direct printing, and reactive ion etching. The combination of nano- and micro-structures imparted highest current density and luminance to the dual-patterned WOLED without electrical degradation. Additionally, the dual-patterned WOLED exhibited higher current and power efficiencies compared to that of the nano- and micro-patterned WOLEDs, which increased by 21% and 27% at 1 mA/cm2, respectively, as compared to that of the reference.
AB - Nano and micro-patterns (dual patterns) were introduced on a glass substrate as an extraction layer to enhance the light extraction efficiency of white organic light-emitting diodes (WOLEDs). The dual-patterned glass was fabricated by thermal evaporation, direct printing, and reactive ion etching. The combination of nano- and micro-structures imparted highest current density and luminance to the dual-patterned WOLED without electrical degradation. Additionally, the dual-patterned WOLED exhibited higher current and power efficiencies compared to that of the nano- and micro-patterned WOLEDs, which increased by 21% and 27% at 1 mA/cm2, respectively, as compared to that of the reference.
KW - 3-D structure
KW - External scattering layer
KW - Light extraction efficiency
KW - Nano and micro pattern
KW - Nanoimprint lithography
KW - OLED
UR - http://www.scopus.com/inward/record.url?scp=85043591475&partnerID=8YFLogxK
U2 - 10.1016/j.orgel.2018.03.011
DO - 10.1016/j.orgel.2018.03.011
M3 - Article
AN - SCOPUS:85043591475
VL - 57
SP - 201
EP - 205
JO - Organic Electronics: physics, materials, applications
JF - Organic Electronics: physics, materials, applications
SN - 1566-1199
ER -