Ultraviolet alignment effect and properties of organic thin film transistors based on soluble triisopropylsilyl-pentacene with photoreactive polymer

Ji Yun Chun, Jin Woo Han, Jeong Min Han, Dae-Shik Seo

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We investigated the electrical properties of triisopropylsilyl (TIPS)-pentacene organic thin film transistors (OTFTs) fabricated with a photoreactive polymer. The OTFTs fabricated with annealing of the gate dielectric layer had a field-effect mobility of up to 0.06cm2 V -1 s-1, while those treated with ultraviolet (UV) irradiation showed a field effect mobility of 0.12cm2 V-1 s-1. The large improvement in TIPS-pentacene OTFT performance using a photoreactive dielectric layer is probably due to the enhanced alignment of TIPS-pentacene molecules and improved dielectric properties.

Original languageEnglish
Article number010206
JournalJapanese Journal of Applied Physics
Volume48
Issue number1
DOIs
Publication statusPublished - 2009 Jan 20

Fingerprint

Thin film transistors
transistors
alignment
polymers
Polymers
thin films
Gate dielectrics
Dielectric properties
dielectric properties
Electric properties
electrical properties
Irradiation
Annealing
Molecules
irradiation
annealing
molecules

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

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abstract = "We investigated the electrical properties of triisopropylsilyl (TIPS)-pentacene organic thin film transistors (OTFTs) fabricated with a photoreactive polymer. The OTFTs fabricated with annealing of the gate dielectric layer had a field-effect mobility of up to 0.06cm2 V -1 s-1, while those treated with ultraviolet (UV) irradiation showed a field effect mobility of 0.12cm2 V-1 s-1. The large improvement in TIPS-pentacene OTFT performance using a photoreactive dielectric layer is probably due to the enhanced alignment of TIPS-pentacene molecules and improved dielectric properties.",
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Ultraviolet alignment effect and properties of organic thin film transistors based on soluble triisopropylsilyl-pentacene with photoreactive polymer. / Chun, Ji Yun; Han, Jin Woo; Han, Jeong Min; Seo, Dae-Shik.

In: Japanese Journal of Applied Physics, Vol. 48, No. 1, 010206, 20.01.2009.

Research output: Contribution to journalArticle

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AU - Seo, Dae-Shik

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