Surface energy and adhesion energy of solution-based patterning in organic thin film transistors

Hsiao-Wen Zan*, Cheng Wei Chou, Kuo Hsi Yen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

This study elucidates the patterning of pentacene by adjusting its surface energy. The surface energy was modified by self-assembled monolayer treatment and exposure to ultra-violet (UV) light through a quartz-glass mask. Then, following pentacene deposition, dipping in water was used to remove pentacene from the UV-exposed area. The adhesion energy and the intrusion energy were analyzed to determine the mechanism of this patterning process. The variation of the intrusion energy with the surface energy was found to be the main issue in pentacene patterning. The characteristics of pentacene-organic thin film transistors were also measured to confirm the proposed method.

Original languageEnglish
Pages (from-to)2231-2236
Number of pages6
JournalThin Solid Films
Volume516
Issue number8
DOIs
StatePublished - 29 Feb 2008

Keywords

  • Pentacene
  • SAM
  • Surface energy

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