High field-effect mobility pentacene thin-film transistors with nanoparticle polymer composite/polymer bilayer insulators

Yunseok Jang, Wi Hyoung Lee, Yeong Don Park, Donghoon Kwak, Jeong Ho Cho, Kilwon Cho

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

High field-effect mobility organic thin-film transistors with nanoparticle polymer composite/polymer bilayer insulators were fabricated. A device composed of a polyvinylphenol (PVP) insulator filled with barium strontium titanate (BST) nanoparticles and coated with a thin polystyrene film was found to exhibit a field-effect mobility (1.2 cm2 V-1 s-1 for a pentacene device) and a field-induced current that are superior to those of devices with only a PVP insulator or a BST-filled PVP insulator. These improvements in the performance are due to an increase in the capacitance and a reduction in the interface roughness of the insulator.

Original languageEnglish
Article number183301
JournalApplied Physics Letters
Volume94
Issue number18
DOIs
Publication statusPublished - 2009

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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