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Unipolar depletion-load organic circuits on flexible substrate by self-organized polymer blending with 6, 13-bis(triisopropylsilylethynyl) pentacene using ink-jet printing

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18 Citations (Scopus)

Abstract

We report the threshold voltage control and its application to electronic circuits of ink-jet printed organic thin-film transistors (OTFTs) with self-organized process using 6, 13-bis(triisopropylsilyl-ethynyl)pentacene (TIPS-pentacene) and insulating polymer on plastic substrate. The threshold voltage of OTFTs can be changed by using different polymer blending. The enhancement and depletion-mode OTFTs can be achieved, respectively, by using polystyrene and poly(vinylphenol) through self-organized blending on the common substrate. A unipolar depletion-load inverter composed of enhancement-mode driver and depletion-mode load OTFTs has been demonstrated with ink-jet printed TIPS-pentacene layer on both TFT channels. An inverter on plastic shows a gain of -90.8 V/V at the driving voltage of -2 V.

Original languageEnglish
Article number053302
JournalApplied Physics Letters
Volume100
Issue number5
DOIs
Publication statusPublished - 30 Jan 2012

Bibliographical note

Funding Information:
This work was supported by the [10030099, Development of TFT CMOS circuits technology using non-vacuum process] R&D program of MKE/KEIT.

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