Negative mold transfer patterned conductive polymer electrode for flexible organic light-emitting diodes

Hyun Jun Lee; Tae Hyun Park; Jin Hwan Choi; Eun Ho Song; Se Joong Shin; Hakkoo Kim; Kyung Cheol Choi; Young Wook Park; Byeong Kwon Ju

doi:10.1016/j.orgel.2012.11.015

Negative mold transfer patterned conductive polymer electrode for flexible organic light-emitting diodes

Hyun Jun Lee, Tae Hyun Park, Jin Hwan Choi, Eun Ho Song, Se Joong Shin, Hakkoo Kim, Kyung Cheol Choi, Young Wook Park, Byeong Kwon Ju

School of Electrical Engineering

Research output: Contribution to journal › Article › peer-review

19 Citations (Scopus)

Abstract

We demonstrate flexible organic light-emitting diodes (FOLEDs) that use flexible conductive polymer electrodes patterned by negative mold transfer printing (nMTP). Because pristine poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) is unsuitable for nMTP owing to problems with wettability, additives are used to improve the surface wetting properties of the polymer on the mold to successfully employ nMTP. Moreover, the additives improve the conductivity of the polymer electrode. FOLEDs fabricated with the modified PEDOT:PSS using nMTP exhibit electrical properties comparable to those of a device having an indium tin oxide (ITO) anode. These results show that the highly conductive PEDOT:PSS patterned by nMTP can be used as transparent high-resolution electrodes in low-cost ITO-free FOLEDs.

Original language	English
Pages (from-to)	416-422
Number of pages	7
Journal	Organic Electronics
Volume	14
Issue number	1
DOIs	https://doi.org/10.1016/j.orgel.2012.11.015
Publication status	Published - 2013 Jan

Keywords

Conductive polymer
Flexible organic light-emitting diode (FOLED)
Micropatterning
Negative mold transfer printing (nMTP)
Transparent

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Chemistry(all)
Biomaterials
Condensed Matter Physics
Electrical and Electronic Engineering
Materials Chemistry

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10.1016/j.orgel.2012.11.015

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@article{e0601add48c64b61b7064cb991043705,

title = "Negative mold transfer patterned conductive polymer electrode for flexible organic light-emitting diodes",

abstract = "We demonstrate flexible organic light-emitting diodes (FOLEDs) that use flexible conductive polymer electrodes patterned by negative mold transfer printing (nMTP). Because pristine poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) is unsuitable for nMTP owing to problems with wettability, additives are used to improve the surface wetting properties of the polymer on the mold to successfully employ nMTP. Moreover, the additives improve the conductivity of the polymer electrode. FOLEDs fabricated with the modified PEDOT:PSS using nMTP exhibit electrical properties comparable to those of a device having an indium tin oxide (ITO) anode. These results show that the highly conductive PEDOT:PSS patterned by nMTP can be used as transparent high-resolution electrodes in low-cost ITO-free FOLEDs.",

keywords = "Conductive polymer, Flexible organic light-emitting diode (FOLED), Micropatterning, Negative mold transfer printing (nMTP), Transparent",

author = "Lee, {Hyun Jun} and Park, {Tae Hyun} and Choi, {Jin Hwan} and Song, {Eun Ho} and Shin, {Se Joong} and Hakkoo Kim and Choi, {Kyung Cheol} and Park, {Young Wook} and Ju, {Byeong Kwon}",

note = "Funding Information: This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (MEST) (CAFDC-20120000816), the NRF (No. 2012R1A6A3A04039396) Project of the MEST, and the IT R&D Program of MKE/KEIT (No. 2009-F-016-01, Development of Eco-Emotional OLED Flat-Panel Lighting). The authors thank the staff of KBSI for technical assistance.",

year = "2013",

month = jan,

doi = "10.1016/j.orgel.2012.11.015",

language = "English",

volume = "14",

pages = "416--422",

journal = "Organic Electronics: physics, materials, applications",

issn = "1566-1199",

publisher = "Elsevier",

number = "1",

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AU - Lee, Hyun Jun

AU - Park, Tae Hyun

AU - Choi, Jin Hwan

AU - Song, Eun Ho

AU - Shin, Se Joong

AU - Kim, Hakkoo

AU - Choi, Kyung Cheol

AU - Park, Young Wook

AU - Ju, Byeong Kwon

N1 - Funding Information: This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (MEST) (CAFDC-20120000816), the NRF (No. 2012R1A6A3A04039396) Project of the MEST, and the IT R&D Program of MKE/KEIT (No. 2009-F-016-01, Development of Eco-Emotional OLED Flat-Panel Lighting). The authors thank the staff of KBSI for technical assistance.

PY - 2013/1

Y1 - 2013/1

N2 - We demonstrate flexible organic light-emitting diodes (FOLEDs) that use flexible conductive polymer electrodes patterned by negative mold transfer printing (nMTP). Because pristine poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) is unsuitable for nMTP owing to problems with wettability, additives are used to improve the surface wetting properties of the polymer on the mold to successfully employ nMTP. Moreover, the additives improve the conductivity of the polymer electrode. FOLEDs fabricated with the modified PEDOT:PSS using nMTP exhibit electrical properties comparable to those of a device having an indium tin oxide (ITO) anode. These results show that the highly conductive PEDOT:PSS patterned by nMTP can be used as transparent high-resolution electrodes in low-cost ITO-free FOLEDs.

AB - We demonstrate flexible organic light-emitting diodes (FOLEDs) that use flexible conductive polymer electrodes patterned by negative mold transfer printing (nMTP). Because pristine poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) is unsuitable for nMTP owing to problems with wettability, additives are used to improve the surface wetting properties of the polymer on the mold to successfully employ nMTP. Moreover, the additives improve the conductivity of the polymer electrode. FOLEDs fabricated with the modified PEDOT:PSS using nMTP exhibit electrical properties comparable to those of a device having an indium tin oxide (ITO) anode. These results show that the highly conductive PEDOT:PSS patterned by nMTP can be used as transparent high-resolution electrodes in low-cost ITO-free FOLEDs.

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KW - Flexible organic light-emitting diode (FOLED)

KW - Micropatterning

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KW - Transparent

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Negative mold transfer patterned conductive polymer electrode for flexible organic light-emitting diodes

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Keywords

ASJC Scopus subject areas

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