M
Masakazu Yamagishi
Researcher at University of Tokyo
Publications - 5
Citations - 583
Masakazu Yamagishi is an academic researcher from University of Tokyo. The author has contributed to research in topics: Organic semiconductor & Electron mobility. The author has an hindex of 5, co-authored 5 publications receiving 500 citations.
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Journal ArticleDOI
High-performance solution-processable N-shaped organic semiconducting materials with stabilized crystal phase.
Chikahiko Mitsui,Toshihiro Okamoto,Toshihiro Okamoto,Toshihiro Okamoto,Masakazu Yamagishi,Junto Tsurumi,Junto Tsurumi,Kazumi Yoshimoto,Katsumasa Nakahara,Katsumasa Nakahara,Junshi Soeda,Junshi Soeda,Yuri Hirose,Hiroyasu Sato,Akihito Yamano,Takafumi Uemura,Jun Takeya,Jun Takeya +17 more
TL;DR: N-shaped organic semiconductors are synthesized via four steps from a readily available starting material and exhibit preferable ionization potential for p-type operation, thermally stable crystalline phase over 200 °C, and high carrier mobility with small threshold voltages in solution-crystallized field-effect transistors.
Journal ArticleDOI
V-shaped organic semiconductors with solution processability, high mobility, and high thermal durability.
Toshihiro Okamoto,Chikahiko Mitsui,Masakazu Yamagishi,Katsumasa Nakahara,Junshi Soeda,Yuri Hirose,Kazumoto Miwa,Hiroyasu Sato,Akihito Yamano,Takeshi Matsushita,Takafumi Uemura,Jun Takeya +11 more
TL;DR: V-shaped organic semiconductors have been designed and synthesized via a large-scale applicable synthetic route and have demonstrated high-performance transistor properties with maximum mobilities and pronounced thermal durability inherent in the V-shaped cores.
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Inch-Size Solution-Processed Single-Crystalline Films of High-Mobility Organic Semiconductors
Junshi Soeda,Junshi Soeda,Takafumi Uemura,Takafumi Uemura,Toshihiro Okamoto,Toshihiro Okamoto,Chikahiko Mitsui,Masakazu Yamagishi,Jun Takeya,Jun Takeya +9 more
TL;DR: In this paper, a method for continuously growing large-domain organic semiconductor crystals was developed to fabricate multi-array high-mobility organic transistors, which achieved a mobility of 5-10 cm2 V-1 s-1.
Journal ArticleDOI
Dinaphtho[1,2-b:2′,1′-d]chalcogenophenes: Comprehensive Investigation of the Effect of the Chalcogen Atoms in the Phenacene-Type π-Electronic Cores
Chikahiko Mitsui,Toshihiro Okamoto,Toshihiro Okamoto,Hiroyuki Matsui,Masakazu Yamagishi,Takeshi Matsushita,Junshi Soeda,Junshi Soeda,Kazumoto Miwa,Hiroyasu Sato,Akihito Yamano,Takafumi Uemura,Jun Takeya,Jun Takeya +13 more
TL;DR: In this paper, Dinaphtho[1,2-b:2′,1′-d]chalcogenophenes as a new class of highly potential p-type semiconductors.
Journal ArticleDOI
Furan fused V-shaped organic semiconducting materials with high emission and high mobility
Katsumasa Nakahara,Chikahiko Mitsui,Toshihiro Okamoto,Toshihiro Okamoto,Toshihiro Okamoto,Masakazu Yamagishi,Hiroyuki Matsui,Takanari Ueno,Yuji Tanaka,Masafumi Yano,Takeshi Matsushita,Junshi Soeda,Junshi Soeda,Yuri Hirose,Hiroyasu Sato,Akihito Yamano,Jun Takeya,Jun Takeya +17 more
TL;DR: A solution-crystallized transistor based on alkylated DNF-V derivatives showed an excellent carrier mobility of up to 1.3 cm(2) V(-1) s(-1), thereby proving to be a new solution-processable active organic semiconductor with high emission and high mobility.