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Spontaneously Formed Nanopatterns on Polymer Films for Flexible Organic Light‐Emitting Diodes
Author(s) -
Lee Illhwan,
Park Jae Yong,
Gim Seungo,
Ham Juyoung,
Son Jun Ho,
Lee JongLam
Publication year - 2015
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201500821
Subject(s) - electroluminescence , oled , substrate (aquarium) , materials science , optoelectronics , light emitting diode , diode , extraction (chemistry) , luminance , computer science , nanotechnology , chemistry , artificial intelligence , oceanography , layer (electronics) , chromatography , geology
Flexible organic light‐emitting diodes with a high light‐extraction efficiency are demonstrated using O 2 plasma treatment on the back side of a PET substrate. The plasma‐treated PET substrate extracts the confined waveguided electroluminescence wave in the structure, confirmed by finite‐difference time‐domain simulations. This leads to the enhancement of light extraction to air and thereby improvement of luminance by 70%.