Silver nanowire-polymer composite electrode for high performance solution-processed thin-film transistors

Liang Hsiang Chen, Pang Lin, Ming Chou Chen, Peng Yi Huang, Choongik Kim, Jia Chong Ho, Cheng Chung Lee

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

Silver nanowires (AgNWs)/poly-(3,4-ethylenedioxythiophene/polystyrene sulphonate) (PEDOT:PSS) composite films as conductive electrode for OTFTs were prepared, and their optical and electrical properties were investigated. The conductive composite films used in this study afforded low sheet resistance of <140 Ω/sq and transmittance as high as 70% in the visible region. For the composite film with 0.1 wt.% of AgNWs, contact resistance as low as 2.7 × 104 Ω cm was obtained, as examined by Transfer length model (TLM) analysis, and work function of the corresponding film was 5.0 eV. Furthermore, the composite films were employed as source and drain electrodes for top-gate/bottom-contact organic thin-film transistors (OTFTs) based on solution-processed 5,11-bistriethylsilylethynyl anthradithiophene (TES-ADT) as organic semiconductor, and the resulting device showed high electrical performance with carrier mobility as high as 0.21 cm2/V s.

Original languageEnglish
Pages (from-to)1881-1886
Number of pages6
JournalOrganic Electronics
Volume13
Issue number10
DOIs
StatePublished - Oct 2012

Keywords

  • Anthradithiophene
  • Conductive electrode
  • Organic thin-film transistor (OTFT)
  • Silver nanowire

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