Corrugated organic light emitting diodes for enhanced light extraction

Ali Ozhan Altun; Sohee Jeon; Jongyoup Shim; Jun Ho Jeong; Dae Geun Choi; Ki Don Kim; Jun Hyuk Choi; Soon Won Lee; Eung Sug Lee; Hyung Dol Park; Jae R. Youn; Jang Joo Kim; Yong Hee Lee; Jae Wook Kang

doi:10.1016/j.orgel.2009.12.005

Corrugated organic light emitting diodes for enhanced light extraction

Ali Ozhan Altun
, Sohee Jeon
, Jongyoup Shim
, Jun Ho Jeong^*
, Dae Geun Choi
, Ki Don Kim
, Jun Hyuk Choi
, Soon Won Lee
, Eung Sug Lee
, Hyung Dol Park
, Jae R. Youn
, Jang Joo Kim
, Yong Hee Lee
, Jae Wook Kang

^*Corresponding author for this work

Department of Flexible and Printable Electronics

Korea Institute of Machinery and Materials
Seoul National University
Korea Advanced Institute of Science and Technology
Korea Institute of Machine and Materials

Research output: Contribution to journal › Journal article › peer-review

78 Scopus citations

Abstract

Corrugated organic light emitting diodes are fabricated on photonic crystal substrates patterned using UV nanoimprint lithography process at room-temperature and low-pressure. Forty-nine percentage enhancement of light extraction was achieved even with the very low corrugation depth of 50 nm. The power efficiency of the corrugated OLEDs was even further improved by 93% compared to the OLED with a planar structure. Finite difference time domain (FDTD) analyses indicated that the Bragg-reflection by the corrugated metallic mirror plays dominant role in the enhancement of extraction efficiency in the corrugated structure and extraction efficiency can be further improved if corrugation depth is increased to 100 nm.

Original language	English
Pages (from-to)	711-716
Number of pages	6
Journal	Organic Electronics
Volume	11
Issue number	5
DOIs	https://doi.org/10.1016/j.orgel.2009.12.005
State	Published - 2010.05

Keywords

Corrugated metallic mirror
Enhancement of extraction efficiency
Organic light emitting diodes
Photonic crystal

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10.1016/j.orgel.2009.12.005

Cite this

@article{3cff618b114f4ed785fcafda3bde08e4,

title = "Corrugated organic light emitting diodes for enhanced light extraction",

abstract = "Corrugated organic light emitting diodes are fabricated on photonic crystal substrates patterned using UV nanoimprint lithography process at room-temperature and low-pressure. Forty-nine percentage enhancement of light extraction was achieved even with the very low corrugation depth of 50 nm. The power efficiency of the corrugated OLEDs was even further improved by 93\% compared to the OLED with a planar structure. Finite difference time domain (FDTD) analyses indicated that the Bragg-reflection by the corrugated metallic mirror plays dominant role in the enhancement of extraction efficiency in the corrugated structure and extraction efficiency can be further improved if corrugation depth is increased to 100 nm.",

keywords = "Corrugated metallic mirror, Enhancement of extraction efficiency, Organic light emitting diodes, Photonic crystal",

author = "Altun, \{Ali Ozhan\} and Sohee Jeon and Jongyoup Shim and Jeong, \{Jun Ho\} and Choi, \{Dae Geun\} and Kim, \{Ki Don\} and Choi, \{Jun Hyuk\} and Lee, \{Soon Won\} and Lee, \{Eung Sug\} and Park, \{Hyung Dol\} and Youn, \{Jae R.\} and Kim, \{Jang Joo\} and Lee, \{Yong Hee\} and Kang, \{Jae Wook\}",

year = "2010",

month = may,

doi = "10.1016/j.orgel.2009.12.005",

language = "English",

volume = "11",

pages = "711--716",

journal = "Organic Electronics",

issn = "1566-1199",

number = "5",

}

TY - JOUR

T1 - Corrugated organic light emitting diodes for enhanced light extraction

AU - Altun, Ali Ozhan

AU - Jeon, Sohee

AU - Shim, Jongyoup

AU - Jeong, Jun Ho

AU - Choi, Dae Geun

AU - Kim, Ki Don

AU - Choi, Jun Hyuk

AU - Lee, Soon Won

AU - Lee, Eung Sug

AU - Park, Hyung Dol

AU - Youn, Jae R.

AU - Kim, Jang Joo

AU - Lee, Yong Hee

AU - Kang, Jae Wook

PY - 2010/5

Y1 - 2010/5

N2 - Corrugated organic light emitting diodes are fabricated on photonic crystal substrates patterned using UV nanoimprint lithography process at room-temperature and low-pressure. Forty-nine percentage enhancement of light extraction was achieved even with the very low corrugation depth of 50 nm. The power efficiency of the corrugated OLEDs was even further improved by 93% compared to the OLED with a planar structure. Finite difference time domain (FDTD) analyses indicated that the Bragg-reflection by the corrugated metallic mirror plays dominant role in the enhancement of extraction efficiency in the corrugated structure and extraction efficiency can be further improved if corrugation depth is increased to 100 nm.

AB - Corrugated organic light emitting diodes are fabricated on photonic crystal substrates patterned using UV nanoimprint lithography process at room-temperature and low-pressure. Forty-nine percentage enhancement of light extraction was achieved even with the very low corrugation depth of 50 nm. The power efficiency of the corrugated OLEDs was even further improved by 93% compared to the OLED with a planar structure. Finite difference time domain (FDTD) analyses indicated that the Bragg-reflection by the corrugated metallic mirror plays dominant role in the enhancement of extraction efficiency in the corrugated structure and extraction efficiency can be further improved if corrugation depth is increased to 100 nm.

KW - Corrugated metallic mirror

KW - Enhancement of extraction efficiency

KW - Organic light emitting diodes

KW - Photonic crystal

UR - https://www.scopus.com/pages/publications/77950594973

U2 - 10.1016/j.orgel.2009.12.005

DO - 10.1016/j.orgel.2009.12.005

M3 - Journal article

AN - SCOPUS:77950594973

SN - 1566-1199

VL - 11

SP - 711

EP - 716

JO - Organic Electronics

JF - Organic Electronics

IS - 5

ER -

Corrugated organic light emitting diodes for enhanced light extraction

Abstract

Keywords

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