Ring edge in film morphology: Benefit or obstacle for ink jet fabrication of organic thin film transistors

Jhih Ping Lu*, Ying P. Chen, Yuh Zheng Lee, Kevin Cheng, Fang-Chung Chen

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

In this study, a novel process using ink jet printing with dilute PMMA [poly(methylmethacrylate)] solution to form fine separation banks as confined boundaries for the subsequent depositing poly(3,4-ethylene dioxythiophene) (PEDOT) was proposed. The PEDOT comprised the source and drained electrodes with a gap of several micrometers due to the innate characteristic of the ring edge of ink jetted PMMA. Using this technique, the organic device was designed with a bottom gate and evaporated pentacene as the channel material. The device mobility and on/off ratio were about 3.6 × 10-4 and 2 × 102 cm2/Vsec, respectively.

Original languageEnglish
Pages (from-to)461-464
Number of pages4
JournalJournal of Imaging Science and Technology
Volume51
Issue number5
DOIs
StatePublished - 1 Sep 2007

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