Zobrazeno 1 - 10
of 274
pro vyhledávání: '"Reiji Kumai"'
Autor:
Tatsuo Hasegawa, Satoru Inoue, Seiji Tsuzuki, Sachio Horiuchi, Hiroyuki Matsui, Tomoharu Okada, Reiji Kumai, Koji Yonekura, Saori Maki-Yonekura
Publikováno v:
Science and Technology of Advanced Materials (2024)
The challenge in developing molecule-based electronic materials lies in the uncontrollable or unpredictable nature of their crystal structures, which are crucial for determining both electrical properties and thin-film formability. This review summar
Externí odkaz:
https://doaj.org/article/7222cfbe3be24d3fb40bdae0c8fff1b9
Autor:
Satoru Inoue, Toshiki Higashino, Kiyoshi Nikaido, Ryo Miyata, Satoshi Matsuoka, Mutsuo Tanaka, Seiji Tsuzuki, Sachio Horiuchi, Ryusuke Kondo, Ryoko Sagayama, Reiji Kumai, Daiki Sekine, Takayoshi Koyanagi, Masakazu Matsubara, Tatsuo Hasegawa
Publikováno v:
Advanced Science, Vol 11, Iss 13, Pp n/a-n/a (2024)
Abstract Some rodlike organic molecules exhibit exceptionally high layered crystallinity when composed of a link between π‐conjugated backbone (head) and alkyl chain (tail). These molecules are aligned side‐by‐side unidirectionally to form sel
Externí odkaz:
https://doaj.org/article/79c0041f038c49da9152b3de9fb57452
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-8 (2023)
Abstract Some organic ferroelectrics have two possible switching modes: molecular reorientation and proton transfer. Typical examples include 2,5-dihydroxybenzoic acid (DHBA) and Hdabco-ReO $$_4$$ 4 (dabco = diazabicyclo[2.2.2]octane). The direction
Externí odkaz:
https://doaj.org/article/8a38917e3553411888d18239866a8a43
Publikováno v:
C, Vol 8, Iss 4, p 60 (2022)
Synthesis of polyaniline in the presence of fullerene nanotubes (nanocarbons) in water was carried out with oxidative polymerization. The surface of the sample showed metallic emerald green color in bulk like the brilliance of encrusted gemstones. Th
Externí odkaz:
https://doaj.org/article/3981ddae0867494a97e98e0f9065823c
Autor:
Akitoshi Nakano, Kento Sugawara, Shinya Tamura, Naoyuki Katayama, Kazuyuki Matsubayashi, Taku Okada, Yoshiya Uwatoko, Kouji Munakata, Akiko Nakao, Hajime Sagayama, Reiji Kumai, Kunihisa Sugimoto, Naoyuki Maejima, Akihiko Machida, Tetsu Watanuki, Hiroshi Sawa
Publikováno v:
IUCrJ, Vol 5, Iss 2, Pp 158-165 (2018)
The crystal structure of the excitonic insulator Ta2NiSe5 has been investigated under a range of pressures, as determined by the complementary analysis of both single-crystal and powder synchrotron X-ray diffraction measurements. The monoclinic ambie
Externí odkaz:
https://doaj.org/article/6e8283c647794c1aa11b5cbb078fb134
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-9 (2017)
Ferroelectrics based on proton tautomerism are promising in low-field and above-roomtemperature operations. Here the authors establish a procedure to optimize spontaneous polarizations, finding that the polarization in croconic acid breaks its own re
Externí odkaz:
https://doaj.org/article/54347debb76b4d20b1956b683db62ad1
Publikováno v:
Polymers, Vol 11, Iss 2, p 348 (2019)
While only a few studies have investigated the synthesis of main chain-type polyazobenzenes, they continue to draw an increasing amount of attention owing to their industrial applications in holography, dyes, and functional adhesives. In this study,
Externí odkaz:
https://doaj.org/article/e90c0b20d0f14ec7adeb2a299a1f49ff
Autor:
Yutaka Nishio, Yoshiya Uwatoko, Kazuyuki Matsubayashi, Hiroyuki Tajima, Motoi Kimata, Youichi Murakami, Kensuke Kobayashi, Hironori Nakao, Reiji Kumai, Akiko Nakao, Kazuyuki Takahashi, Akira Ueda, Takayuki Isono, Sanguchul Lee, Tatsuya Shimokawa, Takahisa Shikama, Koji Kajita, Hatsumi Mori
Publikováno v:
Crystals, Vol 2, Iss 4, Pp 1502-1513 (2012)
The metallic state of the molecular conductor β-(meso-DMBEDT-TTF)2X (DMBEDT-TTF = 2-(5,6-dihydro-1,3-dithiolo[4,5-b][1,4]dithiin-2-ylidene)-5,6-dihydro-5,6-dimethyl-1,3-dithiolo[4,5-b][1,4]dithiin, X = PF6, AsF6) is transformed into the checkerboard
Externí odkaz:
https://doaj.org/article/199993077f5749e0b72fff0a883f3875
Autor:
Ichiro Terasaki, Shun Ito, Taichi Igarashi, Shinichiro Asai, Hiroki Taniguchi, Ryuji Okazaki, Yukio Yasui, Kensuke Kobayashi, Reiji Kumai, Hironori Nakao, Youichi Murakami
Publikováno v:
Crystals, Vol 6, Iss 3, p 27 (2016)
We have prepared polycrystalline samples of the trimer Ir oxide BaIrO3 with face-shared Ir3O12 trimers, and have investigated the origin of the phase transition at 182 K by measuring resistivity, thermopower, magnetization and synchrotron X-ray diffr
Externí odkaz:
https://doaj.org/article/882e9066a00643e1b7cfe8d0c0b2c960
Publikováno v:
Macromolecules. 56:2965-2971
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b02fc8bf7ccba4f40ab11b8288ac9200
https://doi.org/10.1021/acs.macromol.2c02490
https://doi.org/10.1021/acs.macromol.2c02490