Presentation 2018-01-25
Fabrication of Organic Semiconductor Thin Film on Molecular Orientation Insulating Film and Its Effect on TFT Characteristics
Shigeru Okimoto, Yasufumi Iimura, Ryuzou Ohno,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) We have focused on the control of molecular alignment of pentacene thin film for improving carrier mobility of pentacene thin film transistor (TFT). We used photo-reactive gate insulating film for controlling the molecular alignment of pentacene deposited on the film. From XRD (X-ray diffraction) measurements, in-plane XRD patterns of pentacene deposited on UV-processed polymer gate film clearly show the controllability of the crystal orientation of the pentacene film through controlled molecular alignment of pentacene. We fabricate pentacene TFTs for investigating the effect of pentacene molecular alignment on the carrier mobility, and the results showed the anisotropic carrier mobility ranging from 0.2 cm2/Vs to 0.5 cm2/Vs, depending on the alignment direction of pentacene. Moreover, we clarified that the larger in-plane anisotropy of polymer gate insulating film leads to the higher anisotropy in carrier mobility in pentacene TFTs.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) TFT / Gate insulator / Organic semiconductor / Molecular orientation
Paper # EID2017-36
Date of Issue 2018-01-18 (EID)

Conference Information
Committee EID / ITE-IDY / IEIJ-SSL / SID-JC / IEE-EDD
Conference Date 2018/1/25(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Shizuoka Univ., Hamamatsu
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Yuko Kominami(Shizuoka Univ.) / Yoshihide Fujisaki(NHK)
Vice Chair Mutsumi Kimura(Ryukoku Univ.) / Rumiko Yamaguchi(Akita Univ.) / Munehiro Kimura(Nagaoka Univ. of Tech.)
Secretary Mutsumi Kimura(NTT) / Rumiko Yamaguchi(Tokyo Inst. of Tech.) / Munehiro Kimura(Shizuoka Univ.) / (Tohoku Univ.)
Assistant Hiroyuki Nitta(Japan Display) / Mitsuru Nakata(NHK) / Ryosuke Nonaka(Toshiba) / Takeshi Okuno(Huawei) / Tomokazu Shiga(Univ. of Electro-Comm.)

Paper Information
Registration To Technical Committee on Electronic Information Displays / Technical Group on Information Display / Division of Solid State Light Sources / Society for Information Display Japan Chapter / Technical Meeting on Electron Devices
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Fabrication of Organic Semiconductor Thin Film on Molecular Orientation Insulating Film and Its Effect on TFT Characteristics
Sub Title (in English)
Keyword(1) TFT
Keyword(2) Gate insulator
Keyword(3) Organic semiconductor
Keyword(4) Molecular orientation
1st Author's Name Shigeru Okimoto
1st Author's Affiliation Tokyo University of Agriculture and Technology(Tokyo Univ. of A&T)
2nd Author's Name Yasufumi Iimura
2nd Author's Affiliation Tokyo University of Agriculture and Technology(Tokyo Univ. of A&T)
3rd Author's Name Ryuzou Ohno
3rd Author's Affiliation JSR Corporation(JSR)
Date 2018-01-25
Paper # EID2017-36
Volume (vol) vol.117
Number (no) EID-411
Page pp.pp.25-28(EID),
#Pages 4
Date of Issue 2018-01-18 (EID)