Solvent effect of inkjet printed source/drain electrodes on electrical properties of polymer thin-film transistors

Jung Ah Lim, Jeong Ho Cho, Yeong Don Park, Do Hwan Kim, Minkyu Hwang, Kilwon Cho

Research output: Contribution to journalArticle

83 Citations (Scopus)

Abstract

We show that the electrical properties of polymer thin-film transistors (PTFTs) can be enhanced by controlling the solvent properties of poly(3,4-ethylenedioxythiophene) doped with poly(styrene sulfonate) (PEDOT/PSS) solution used as the inkjet-printed source and drain electrodes. Specifically, addition of dimethyl sulfoxide (DMSO) into the PEDOT/PSS solution increased the conductivity of the inkjet-printed PEDOT electrodes and remarkably reduced the contact resistance of the electrodes. The lower contact resistance of the DMSO-treated PEDOT electrode compared to the corresponding electrode without DMSO treatment may be due to enhanced interfacial stability at the contact between the printed PEDOT electrodes and the semiconductor layers.

Original languageEnglish
Article number082102
JournalApplied Physics Letters
Volume88
Issue number8
DOIs
Publication statusPublished - 2006 Mar 3

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transistors
electrical properties
electrodes
polymers
thin films
contact resistance
sulfonates
polystyrene
conductivity

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Lim, Jung Ah ; Cho, Jeong Ho ; Park, Yeong Don ; Kim, Do Hwan ; Hwang, Minkyu ; Cho, Kilwon. / Solvent effect of inkjet printed source/drain electrodes on electrical properties of polymer thin-film transistors. In: Applied Physics Letters. 2006 ; Vol. 88, No. 8.
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Solvent effect of inkjet printed source/drain electrodes on electrical properties of polymer thin-film transistors. / Lim, Jung Ah; Cho, Jeong Ho; Park, Yeong Don; Kim, Do Hwan; Hwang, Minkyu; Cho, Kilwon.

In: Applied Physics Letters, Vol. 88, No. 8, 082102, 03.03.2006.

Research output: Contribution to journalArticle

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