Organic thin film transistors fabricated with soluble pentacene active channel layer and NiOx electrodes

Jin Woo Lee, Jin Woo Han, Sang Kuk Lee, Jeong Min Han, Byung-Moo Moon, Dae Shik Seo, Jae Hyung Kim

Research output: Contribution to journalArticle

Abstract

We report on the fabrication of soluble pentacene-based thin-film transistors (TFTs) that consist of NiOx, poly-vinyl phenol (PVP), and Ni for the source-drain (S/D) electrodes, gate dielectric, and gate electrode, respectively. The NiOx S/D electrodes of which the work function is well matched to that of soluble pentacene are deposited on a soluble pentacene channel by sputter deposited of NiO target and show a moderately low but still effective transmittance of65% in the visible range along with a good sheet resistance of40/. The maximum saturation current of our soluble pentacene-based TFT is about 15A at a gate bias of-30V showing a high field effect mobility of 0.03cm2/Vs in the dark, and the on/off current ratio of our TFT is about 104. It is concluded that jointly adopting NiOx for the S/D electrodes and PVP for gate dielectric realizes a high-quality soluble pentacene-based TFT.

Original languageEnglish
JournalMolecular Crystals and Liquid Crystals
Volume499
DOIs
Publication statusPublished - 2009 Feb 1

Fingerprint

Thin film transistors
transistors
Electrodes
electrodes
Gate dielectrics
thin films
phenols
Phenols
Phenol
Sheet resistance
transmittance
saturation
Fabrication
fabrication
pentacene

Keywords

  • NiOx
  • Organic TFT
  • PVP
  • Soluble pentacene

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Science(all)

Cite this

Organic thin film transistors fabricated with soluble pentacene active channel layer and NiOx electrodes. / Lee, Jin Woo; Han, Jin Woo; Lee, Sang Kuk; Han, Jeong Min; Moon, Byung-Moo; Seo, Dae Shik; Kim, Jae Hyung.

In: Molecular Crystals and Liquid Crystals, Vol. 499, 01.02.2009.

Research output: Contribution to journalArticle

Lee, Jin Woo ; Han, Jin Woo ; Lee, Sang Kuk ; Han, Jeong Min ; Moon, Byung-Moo ; Seo, Dae Shik ; Kim, Jae Hyung. / Organic thin film transistors fabricated with soluble pentacene active channel layer and NiOx electrodes. In: Molecular Crystals and Liquid Crystals. 2009 ; Vol. 499.
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AU - Seo, Dae Shik

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