Zobrazeno 1 - 10
of 95
pro vyhledávání: '"Shinya Ohmagari"'
Publikováno v:
JACS Au, Vol 4, Iss 3, Pp 1184-1193 (2024)
Externí odkaz:
https://doaj.org/article/b124c9097c4643a9b0ce7d013842d5c4
Autor:
Kenshin Takemura, Wataru Iwasaki, Nobutomo Morita, Shinya Ohmagari, Yasunori Takaki, Hitomi Fukaura, Kazuya Kikunaga
Publikováno v:
Nanomaterials, Vol 14, Iss 11, p 981 (2024)
Soil plays a crucial role in human health through its impact on food and habitation. However, it often contains toxic heavy metals, with mercury being particularly hazardous when methylated. Currently, high-sensitivity, rapid detection of mercury is
Externí odkaz:
https://doaj.org/article/f6d2f5a516564e658deccc11948069e3
Autor:
Tatsuya Honda, Kenshin Takemura, Susumu Matsumae, Nobutomo Morita, Wataru Iwasaki, Ryoji Arita, Suguru Ueda, Yeoh Wen Liang, Osamu Fukuda, Kazuya Kikunaga, Shinya Ohmagari
Publikováno v:
PLoS ONE, Vol 19, Iss 3, p e0298331 (2024)
Electrochemical measurements, which exhibit high accuracy and sensitivity under low contamination, controlled electrolyte concentration, and pH conditions, have been used in determining various compounds. The electrochemical quantification capability
Externí odkaz:
https://doaj.org/article/4a7b46ee5b334b34836c0c28ad3c0d34
Autor:
Shinya Ohmagari
Publikováno v:
Functional Diamond, Vol 3, Iss 1 (2023)
Diamond single crystals have garnered significant attention due to their wide-ranging applications, encompassing not only semiconducting films but also potential quantum sensing materials. The hot-filament activated chemical vapor deposition (HFCVD)
Externí odkaz:
https://doaj.org/article/a388daac47e941eeb0dae0bab7fed99a
Autor:
Eslam Abubakr, Shinya Ohmagari, Abdelrahman Zkria, Hiroshi Ikenoue, Julien Pernot, Tsuyoshi Yoshitake
Publikováno v:
Materials Research Letters, Vol 10, Iss 10, Pp 666-674 (2022)
We report the fabrication of p-n+ diamond homojunction through an innovative approach of laser irradiation in liquid-ambient. A shallow phosphorus-doped layer with a high electric conductivity is processed on top of a p-type diamond substrate to form
Externí odkaz:
https://doaj.org/article/d000384cc95d46418d82516a5c4c3d7d
Autor:
Sreenath Mylo Valappil, Shinya Ohmagari, Abdelrahman Zkria, Phongsaphak Sittimart, Eslam Abubakr, Hiromitsu Kato, Tsuyoshi Yoshitake
Publikováno v:
AIP Advances, Vol 12, Iss 8, Pp 085007-085007-6 (2022)
n-Type (phosphorus-doped) diamond is a promising material for diamond-based electronic devices. However, realizing good ohmic contacts for phosphorus-doped diamonds limits their applications. Thus, the search for non-conventional ohmic contacts has b
Externí odkaz:
https://doaj.org/article/416a543b8d924e6fa6ed3545ccedc528
Autor:
Phongsaphak Sittimart, Shinya Ohmagari, Takashi Matsumae, Hitoshi Umezawa, Tsuyoshi Yoshitake
Publikováno v:
AIP Advances, Vol 11, Iss 10, Pp 105114-105114-6 (2021)
Heterojunctions consisting of p-type diamond substrates and thin exfoliated n-type β-Ga2O3 layers were fabricated at a low temperature using a direct-bonding technique. We have fabricated p+-diamond/n-Ga2O3 (p+–n) and p-diamond/n-Ga2O3 (p–n) str
Externí odkaz:
https://doaj.org/article/3186b059128246979493561e1092d40d
Publikováno v:
Nanomaterials, Vol 12, Iss 10, p 1741 (2022)
Owing to its simplicity and sensitivity, electrochemical analysis is of high significance in the detection of pollutants and highly toxic substances in the environment. In electrochemical analysis, the sensitivity of the sensor and reliability of the
Externí odkaz:
https://doaj.org/article/a0d89117d37643e4919978ff1b10c7f2
Publikováno v:
Materials Research Express, Vol 9, Iss 11, p 115901 (2022)
Diamond-based Schottky barrier diodes (SBDs) are involved in many technological applications. In a conventional SBD fabrication process that involves interface carbide forming ohmic contacts, a post-annealing step is necessary for ohmic contacts to a
Externí odkaz:
https://doaj.org/article/fe61d53226174f30b94741549d7f37ab
Autor:
Phongsaphak Sittimart, Shinya Ohmagari, Hitoshi Umezawa, Hiromitsu Kato, Kotaro Ishiji, Tsuyoshi Yoshitake
Publikováno v:
Advanced Optical Materials.