Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Kazuki KOYAMA"'
Autor:
Takeshi Odagawa, Sota Yamamoto, Chaoliang Zhang, Kazuki Koyama, Jun Ishihara, Giacomo Mariani, Yoji Kunihashi, Haruki Sanada, Junsaku Nitta, Makoto Kohda
Publikováno v:
APL Materials, Vol 12, Iss 6, Pp 061120-061120-8 (2024)
We investigate the excitonic species in WS2 monolayers transferred onto III–V semiconductor substrates with different surface treatments. When the III–V substrates were covered with amorphous native oxides, negatively charged excitons dominated t
Externí odkaz:
https://doaj.org/article/980779194ccf47b1bd3d849c67024d7c
Autor:
Lei Guo, Fangze Liu, Kazuki Koyama, Nolan Regis, Anna M. Alexander, Gaoxue Wang, Jeffrey DeFazio, James A. Valdez, Anju Poudel, Masahiro Yamamoto, Nathan A. Moody, Yoshifumi Takashima, Hisato Yamaguchi
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-9 (2023)
Abstract Protection of free-electron sources has been technically challenging due to lack of materials that transmit electrons while preventing corrosive gas molecules. Two-dimensional materials uniquely possess both of required properties. Here, we
Externí odkaz:
https://doaj.org/article/3e1a2ba13f36467b81373faa1bb2e707
Publikováno v:
Electrochemistry, Vol 92, Iss 4, Pp 047003-047003 (2024)
Although Li-air batteries (LAB) have a high theoretical energy density (3500 Wh kg−1), further developments are required to overcome their practical limitations. Regarding the Li-metal negative electrode (NE), we have previously reported on the rev
Externí odkaz:
https://doaj.org/article/7d566d90014a4e919e18b124154b05f4
Autor:
Lei Guo, Fangze Liu, Kazuki Koyama, Nolan Regis, Anna M. Alexander, Gaoxue Wang, Jeffrey DeFazio, James A. Valdez, Anju Poudel, Masahiro Yamamoto, Nathan A. Moody, Yoshifumi Takashima, Hisato Yamaguchi
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-2 (2023)
Externí odkaz:
https://doaj.org/article/95dfd563b6bd42a7912c35c874bdb024
Publikováno v:
The Review of Socionetwork Strategies. 16:417-430
In recent years, Taylor’s law describing the power function relationship between the mean and standard deviation of certain phenomena has found an increasing number of applications. We studied the characteristics of Taylor’s law for branded produ
Publikováno v:
The Review of Socionetwork Strategies.
Publikováno v:
ECS Meeting Abstracts. :551-551
Li-air batteries (LAB) have been attracting much attention because of their theoretical energy density of 3500 Wh kg−1, which is five times as high as that of Li-ion batteries. However, many problems remain to be challenged in every component of th
Publikováno v:
ICDM Workshops
Structurally regularized learning methods have been attracting attention in the field of statistics, machine learning, and signal processing as useful analysis tools for learning in high-dimensional settings. Using these methods, specific structure c
Autor:
Hiromi Otsuka, Morihiro Saito, Yoshimi Kubo, Tatsuo Horiba, Taichi Fujinami, Kazuki Koyama, Mika Fukunishi, Ryuto Sato
Publikováno v:
ECS Meeting Abstracts. :74-74
Autor:
Minoru Sohmiya, Kimihiko Ito, Hiromi Otsuka, Morihiro Saito, Yoshiya Hayashi, Yoshimi Kubo, Taichi Fujinami, Tatsuo Horiba, Kazuki Koyama
Publikováno v:
Journal of The Electrochemical Society. 168:010520
The cycle stability of lithium negative electrodes for Li–air secondary batteries was studied under oxygen atmosphere using Li∣Li symmetric cells with three organic electrolyte solutions: 1.0 M LiCF3SO3/tetraglyme (G4), 1.0 M LiN(SO2CF3)2/G4, and