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

Research output: Contribution to journalArticle

17 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 languageEnglish
Pages (from-to)416-422
Number of pages7
JournalOrganic Electronics: physics, materials, applications
Volume14
Issue number1
DOIs
Publication statusPublished - 2013 Jan 1

Fingerprint

Organic light emitting diodes (OLED)
Printing
Polymers
printing
light emitting diodes
Electrodes
electrodes
polymers
Tin oxides
Indium
Wetting
indium oxides
tin oxides
wettability
Anodes
Electric properties
wetting
anodes
electrical properties
conductivity

Keywords

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

ASJC Scopus subject areas

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

Cite this

Negative mold transfer patterned conductive polymer electrode for flexible organic light-emitting diodes. / Lee, Hyun Jun; Park, Tae Hyun; Choi, Jin Hwan; Song, Eun Ho; Shin, Se Joong; Kim, Hakkoo; Choi, Kyung Cheol; Park, Young Wook; Ju, Byeong Kwon.

In: Organic Electronics: physics, materials, applications, Vol. 14, No. 1, 01.01.2013, p. 416-422.

Research output: Contribution to journalArticle

Lee, Hyun Jun ; Park, Tae Hyun ; Choi, Jin Hwan ; Song, Eun Ho ; Shin, Se Joong ; Kim, Hakkoo ; Choi, Kyung Cheol ; Park, Young Wook ; Ju, Byeong Kwon. / Negative mold transfer patterned conductive polymer electrode for flexible organic light-emitting diodes. In: Organic Electronics: physics, materials, applications. 2013 ; Vol. 14, No. 1. pp. 416-422.
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