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助教　スタッフ（専任）

関根　智仁 (Tomohito SEKINE)

TEL: 0238-26-3387
E-mail: tomohito<at>yz.yamagata-u.ac.jp
スパムメール防止のため、半角＠を<at>にしています。

経　歴

2010年 山形大学工学部 物質化学工学科 卒業
2010年 山形大学工学部 技術部 機器分析技術室 技術員
2016年 山形大学大学院理工学研究科 有機材料工学専攻 博士後期課程 修了（社会人枠）
2017年 山形大学工学部 有機材料システム研究科 助教

学位　博士(工学)

研究業績

[24] "Low Operating Voltage and Highly Pressure-Sensitive Printed Sensor for Human Vital Sign Monitoring with Analogic Amplifier Circuit"
Tomohito Sekine et al.,
Submitting
[23] "Printed Organic Complementary Inverter with Single SAM Process Using a p-type D-A Polymer Semiconductor"
Yasunori Takeda, Tomohito Sekine, Rei Shiwaku, Tomohide Murase, Hiroyuki Matsui, Daisuke Kumaki, Shizuo Tokito
Applied Sciences, Accepted (2018).
[22] "Morphological Behavior of Printed Silver Electrodes with Protective Self-Assembled Monolayers for Electrochemical Migration"
Tomohito Sekine, Jun Sato, Yasunori Takeda, Daisuke Kumaki, Shizuo Tokito
ACS Applied Materials & Interfaces, 10, 16210 (2018).
[21] "Fully Printed Wearable Vital Sensor for Human Pulse Rate Monitoring using Ferroelectric Polymer"
Tomohito Sekine, Ryo Sugano, Tomoya Tashiro, Jun Sato, Hiroyuki Matsui, Daisuke Kumaki, Fabrice Domingues Dos Suntos, Atsushi Miyabo, Shizuo Tokito
Scientific Reports, 8, 4442 (2018).
[20] "Switching Time in Ferroelectric Organic Field-Effect Transistors"
Ryo Sugano, Tomoya Tashiro, Jun Sato, Tomohito Sekine, Hiroyuki Matsui, Daisuke Kumaki, Fabrice Domingues Dos Suntos, Atsushi Miyabo, Shizuo Tokito
Physica Status Solidi A: Applications and Materials Science, 215, 1701059 (2018).
[19] "Organic Complementary Inverter Circuits Fabricated with Reverse Offset Printing"
Yasunori Takeda, Yudai Yoshimura, Rei Shiwaku, Kazuma Hayasaka, Tomohito Sekine, Tomoko Okamoto, Hiroyuki Matsui, Daisuke Kumaki, Yoshinori Katayama, Shizuo Tokito
Advanced Electronic Materials, 4, 1700313 (2018).
[18] "Development of a silver nanoparticle ink toward fine line patterning using gravure offset printing"
Daisuke Shiokawa, Konami Izumi, Ryo Sugano, Tomohito Sekine, Tsuyoshi Minami, Daisuke Kumaki, and Shizuo Tokito
Japanese Journal of Applied Physics, 56, Article ID: 5S2 (2017).
[17] "Mechanical fatigue behavior of flexible printed organic thin-film transistors under applied strain"
Tomohito Sekine, Daisuke Kumaki, and Shizuo Tokito
Materials, 10, 18 (2017).
[16] "The effect of mechanical strain on contact resistance in flexible printed organic thin-film transistors"
Tomohito Sekine, Kenjiro Fukuda, Daisuke Kumaki, and Shizuo Tokito
Flexible and Printed Electronics, 1, 035005 (2016).
【"2016 Featured Article" of Flexible and Printed Electronics】
[15] "Fully printed and flexible ferroelectric capacitors based on a ferroelectric polymer for pressure detection"
Tomohito Sekine, Ryo Sugano, Tomoya Tashiro, Kenjiro Fukuda, Daisuke Kumaki, Fabrice Domingues Dos Santos, Atsushi Miyabo, and Shizuo Tokito
Japanese Journal of Applied Physics, 55, Article ID: 10TA18 (2016).
[14] "Ultrathin flexible memory devices based on organic ferroelectric transistors"
Ryo Sugano, Yoshinori Hirai, Tomoya Tashiro, Tomohito Sekine, Kenjiro Fukuda, Daisuke Kumaki, Fabrice Domingues dos Santos, Atsushi Miyabo, and Shizuo Tokito
Japanese Journal of Applied Physics, 55, Article ID: 10TA04 (2016).
[13] "Free-standing organic transistor and circuits with sub-micron thicknesses"
Kenjiro Fukuda, Tomohito Sekine, Rei Shiwaku, Takuya Morimoto, Daisuke Kumaki and Shizuo Tokito
Scientific Reports, 6, 27450 (2016).
[12] "Enhanced memory characteristics in organic ferroelectric field-effect transistors　through thermal annealing"
Ryo Sugano, Yoshinori Hirai, Tomoya Tashiro, Tomohito Sekine, Kenjiro Fukuda, Daisuke Kumaki, Fabrice Domingues dos Santos, Atsushi Miyabo, and Shizuo Tokito
AIP Advances, 5, 117106 (2015).
[11] "Enhanced Adhesion Mechanisms between Printed Nano-Silver Electrodes and Underlying Polymer Layers"
Tomohito Sekine, Kenjiro Fukuda, Daisuke Kumaki and Shizuo Tokito
Nanotechnology, 26, 321001 (2015).
[10] "Highly stable flexible printed organic thin-film transistor devices under high strain conditions using semiconducting polymers"
Tomohito Sekine, Kenjiro Fukuda, Daisuke Kumaki and Shizuo Tokito
Japanese Journal of Applied Physics, 54, Article ID: 04DK10 (2015).
[9] "An extended-gate type organic field effect transistor functionalised by phenylboronic acid for saccharide detection in water"
Tsuyoshi Minami, Tsukuru Minamiki, Yuki Hashima, Daisuke Yokoyama, Tomohito Sekine, Kenjiro Fukuda, Daisuke Kumaki and Shizuo Tokito
Chemical Communications, 50, 15613-15615 (2014).
[8] "Fully-printed high-performance organic thin-film transistors and circuitry on one-micron-thick polymer films"
Kenjiro Fukuda, Yasuyuki Takeda, Yudai Yoshimura, Rei Shiwaku, Lam Truc Tran, Tomohito Sekine, Makoto Mizukami, Daisuke Kumaki and Shizuo Tokito
Nature Communications, 5, 4147 (2014).
[7] "Improvement of mechanical durability on organic TFT with printed electrodes prepared from nanoparticle ink"
Tomohito Sekine, Hideaki Ikeda, Akifumi Kosakai, Kenjiro Fukuda, Daisuke Kumaki, and Shizuo Tokito
Applied Surface Science, 294, 20-23 (2014).
[6] "Strain sensitivity and durability in p-type and n-type organic thin-film transistors with printed silver electrodes"
Kenjiro Fukuda, Kenta Hikichi, Tomohito Sekine, Yasunori Takeda, Tsukuru Minamiki, Daisuke Kumaki, and Shizuo Tokito
Scientific Reports,, 3, 2048 (2013).
[5] "Patterning Method for Silver Nanoparticle Electrodes in Fully Solution-Processed Organic Thin-Film Transistors Using Selectively Treated Hydrophilic and Hydrophobic Surfaces"
Kenjiro Fukuda, Yasunori Takeda, Yu Kobayashi, Masahiro Shimizu, Tomohito Sekine, Daisuke Kumaki, Masato Kurihara, Masatomi Sakamoto, and Shizuo Tokito
Japanese Journal of Applied Physics, 52, Article ID: 05DB05 (2013).
[4] "Profile Control of Inkjet Printed Silver Electrodes and their Application to Organic Transistors"
Kenjiro Fukuda, Tomohito Sekine, Daisuke Kumaki, and Shizuo Tokito
ACS Applied Materials & Interfaces, 5, 3916-3920 (2013).
[3] "Organic integrated circuits using room-temperature sintered silver nanoparticles as printed electrodes"
Kenjiro Fukuda, Tomohito Sekine, Yu Kobayashi, Yasunori Takeda, Masahiro Shimizu, Naoya Yamashita, Daisuke Kumaki, Mitsunori Itoh, Minami Nagaoka, Takami Toda, Sayaka Saito, Masato Kurihara, Masatomi Sakamoto, and Shizuo Tokito
Organic Electronics, 13, 3296-3301 (2012).
[2] "Stable organic thin-film transistors using full solution-processing and low-temperature sintering silver nanoparticle inks"
Kenjiro Fukuda, Tomohito Sekine, Yu Kobayashi, Daisuke Kumaki, Mitsunori Itoh, Minami Nagaoka, Takami Toda, Sayaka Saito, Masato Kurihara, Masatomi Sakamoto and Shizuo Tokito
Organic Electronics, 13, 1660-1664 (2012).
[1] "Applied Voltage Dependence Of CarbonRadical in Electric Double Layer Capacitor Measured by in situ ESR Spectroscopy and AC Cyclic Voltammetry"
Tomohiro Ito, Masakatsu Kobayashi, Mayumi Yoshida, Tomohito Sekine, Kazuhiro Tachibana, Tatsuo Nishina, and Tateaki Ogata
Electrochemistry 78, 5, 390-392（2010).
[3] “第3編　第七章　第二節　印刷電極の密着性技術とフレキシブル有機トランジスタの応用”
関根智仁、熊木大介、時任静士
表面・界面ハンドブック~材料創製・分析・評価の最新技術から先端産業への適用、環境配慮まで~ (2016).
[2] “第4編　進化する印刷技術・装置　第5章　印刷電極の信頼性”
関根智仁、福田憲二郎、熊木大介、時任静士
次世代プリンテッドエレクトロニクス技術 Advanced Technologies for Next-Generation Printed Electronics (2015).
[1] “銀ナノ粒子インクを用いた印刷電極の密着力と曲げ応力耐性”
関根智仁、福田憲二郎、熊木大介、時任静士
コンバーテック, 484, 88-91 (2013).
[6] “Flexible Printed Pressure Sensors with Organic TFTs for Healthcare Applications”
(Poster) Tomohito Sekine，Daisuke Kumaki, Fabrice Domingues Dos Santos, Atsushi Miyabo, and Shizuo Tokito
Materials Research Society (MRS) Fall Meeting
November, Boston, Massachusetts, USA (2017).
[5] “Printed Wearable Physical Sensor using Ferroelectric Polymer”
(Invited) Tomohito Sekine
2017 International Conference on Flexible and Printed Electronics (ICFPE 2017)
September, The SHILLA HOTEL, Jeju Island, Korea (2017).
[4] “Low-Voltage-Operating Organic Thin-Film Transistor using High-k Polymer Gate Dielectric"
(Poster) Tashiro Tomoya, Ryo Sugano, Tomohito Sekine，Daisuke Kumaki, Fabrice Domingues Dos Santos, Atsushi Miyabo, and Shizuo Tokito
2017 International Conference on Flexible and Printed Electronics (ICFPE 2017) September, The SHILLA HOTEL, Jeju Island, Korea (2017).
[3] “Low-Voltage-Operating Organic Thin-Film Transistor using High-k Polymer Gate Dielectric"
(Poster)Ryo Sugano, Tomoya Tashiro, Tomohito Sekine，Daisuke Kumaki, Fabrice Domingues Dos Santos, Atsushi Miyabo, and Shizuo Tokito
2016 International Conference on Flexible and Printed Electronics (ICFPE 2016)
September, Yamagata Univ., Yonezawa, in Japan (2016).
[2] “Printed Pressure Sensor for Human Pulse Rate Detecting”
(Oral) Tomohito Sekine，Ryo Sugano, Tomoya Tashiro, Kenjiro Fukuda, Daisuke Kumaki, Fabrice Domingues Dos Santos, Atsushi Miyabo, and Shizuo Tokito
2016 International Conference on Flexible and Printed Electronics (ICFPE 2016)
September, Yamagata Univ., Yonezawa, in Japan (2016).
[1] “Improvement in Electronic Stability under Bending Stress in Flexible Organic TFT using Polymer Semiconductor”
(Poster) Tomohito Sekine，Kenjiro Fukuda，Daisuke Kumaki，Shizuo Tokito
2014 International Conference on Solid State Devices and Materials (SSDM 2014)
September, International Congress Center Epochal Tsukuba, in Japan.
■ 公益財団法人　永守財団 (研究代表者).
"触覚フィードバックシステムを指向した印刷型平面ソフトアクチュエータの開発"(2018).
■ 公益財団法人　SBS鎌田財団 (研究協力者).
"低コスト簡易RFタグ駆動を目指した印刷型有機整流回路の開発"(2018).
■ 公益財団法人 松籟科学技術振興財団 (研究代表者).
"ブレンデッドリラクサーポリマーを用いた全印刷型低電圧駆動有機TFTの作製と論理回路応用"(2018).
■ 科学研究費補助金奨励研究 (研究代表者).
"塗るだけで作れる電子回路学習教材の開発"(2017).
■ 一般財団法人 電子回路基板技術振興財団 (研究代表者).
"高齢者介護用途を指向した印刷型体温計に適合する全印刷型電子回路の開発"(2017).
■ 公益財団法人 八洲環境技術振興財団 (研究代表者).
"有機強誘電性薄膜を用いた全印刷型発電デバイスの開発"(2017).
■ 東京工業大学基金研究補助金 (研究代表者).
"全工程印刷法で作製された有機薄膜トランジスタの曲げセンサ応用"(2015).
■ 科学研究費補助金奨励研究 (研究代表者).
"銀ナノ粒子インクを用いた印刷電極の密着性向上技術の開発"(2014).
■ 山形大学産業研究所米沢市奨励研究補助金.
"フレキシブルフィルム上への低抵抗配線の低温形成技術の確立"(2012).
[2] 第44回 応用物理学会 講演奨励賞
"高感度印刷型圧力センサによる脈波伝搬速度の測定"(2018年).
[1] 第33回 強誘電体応用会議 優秀発表賞
"フォースセンサ応用を目指した全印刷型強誘電性キャパシタ"(2016年).
【外部委員】
[3] "フレキシブルデバイス信頼性国際標準化委員会"(2018).
[2] "デバイス信頼性試験方法国際標準化委員会委員"(2015～2017).
[1] "国際標準化フィージビリティスタディ委員会委員"(2014).
[5] 毒物劇物取扱責任者
[4] 高等学校教育職員免許(工業)
[3] X線取扱主任者
[2] 高圧ガス製造保安責任者（乙種, 化学)
[1] 有機溶剤作業主任者

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