Characteristics of organic light-emitting diodes with conducting polymer anodes on plastic substrates

Jin Woo Huh, Young Min Kim, Young Wook Park, Jin Hwan Choi, Jin Woo Lee, Jong Woo Lee, Jae Woong Yang, Sung Hoo Ju, Kyeong Kap Paek, Byeong Kwon Ju

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22 Citations (Scopus)


The fabrication of conducting polymer films by a screen-printing method and characterization of an organic light-emitting diode (OLED) implemented using these films as an anode on plastic substrates are reported. Organic transparent electrode materials containing poly(3,4-ethylenedioxythiophene) (PEDOT) doped with poly(styrenesulfonic acid) (PSS) (PEDOT:PSS) were used after the modification by a unique nanoparticle binder design. The electro-optical properties as well as mechanical stabilities of these films were measured. The OLED performances when employing these films were comparable to that of OLEDs using indium tin oxide (ITO) despite their relatively poor conductivity. An external quantum efficiency of the OLED using this anode is ∼3.5%, which is about twice as that of OLEDs using ITO. These results show that the organic transparent electrode of a conducting polymer film patterned by the screen-printing method is a potential candidate for an electrode of the flexible OLED.

Original languageEnglish
Article number044502
JournalJournal of Applied Physics
Issue number4
Publication statusPublished - 2008

Bibliographical note

Funding Information:
This work was supported by the National Research Laboratory (NRL, R0A-2007-000-20111-0) Program of the Ministry of Science and Technology (Korea Science and Engineering Foundation).

ASJC Scopus subject areas

  • General Physics and Astronomy


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