Zobrazeno 1 - 10
of 630
pro vyhledávání: '"Takahiro, Kozawa"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-9 (2024)
Abstract The imaging reactions of resist materials used for nano-patterning have become radiation-chemical reactions, with the shortening of wavelengths of the exposure light sources in lithography systems. The most widely used patterning materials i
Externí odkaz:
https://doaj.org/article/eced47fcb3ee4f4caa697fc25b1f746c
Autor:
Giichiro Uchida, Kodai Masumoto, Mikito Sakakibara, Yumiko Ikebe, Shinjiro Ono, Kazunori Koga, Takahiro Kozawa
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-13 (2023)
Abstract To realize high-capacity Si anodes for next-generation Li-ion batteries, Si/Sn nanowires were fabricated in a single-step procedure using He plasma sputtering at a high pressure of 100–500 mTorr without substrate heating. The Si/Sn nanowir
Externí odkaz:
https://doaj.org/article/5bba688b9e8b40999c30c97182a0094c
Quasi-direct Cu–Si3N4 bonding using multi-layered active metal deposition for power-module substrate
Autor:
Hiroaki Tatsumi, Seongjae Moon, Makoto Takahashi, Takahiro Kozawa, Eiki Tsushima, Hiroshi Nishikawa
Publikováno v:
Materials & Design, Vol 238, Iss , Pp 112637- (2024)
The advancement of power modules demands more reliable insulating circuit substrates. Traditional substrates, comprising Cu and Si3N4, are produced using active metal brazing (AMB). However, AMB substrates have reliability concerns owing to electroch
Externí odkaz:
https://doaj.org/article/d029dab47bb749a3a8e5ea4cf40c44bd
Stratified polymer dissolution model based on impedance data from quartz crystal microbalance method
Autor:
Yuqing Jin, Yuko Tsutsui Ito, Takahiro Kozawa, Takashi Hasebe, Kazuo Sakamoto, Makoto Muramatsu
Publikováno v:
Applied Physics Express, Vol 17, Iss 8, p 086502 (2024)
In lithography, the development process is essential for achieving high fidelity. The quartz crystal microbalance (QCM) method is a primary tool for analyzing the dissolution kinetics of resist polymers by measuring their frequency and impedance. How
Externí odkaz:
https://doaj.org/article/e3cf8e06d0684f73ae5926a5b62d78ea
Publikováno v:
Applied Physics Express, Vol 17, Iss 2, p 026001 (2024)
To realize high-capacity Ge anodes for next-generation Li ^+ -ion batteries, a multilayer anode with a C(top)/Ge(middle)/C(bottom) structure was developed, where nanostructured amorphous Ge (a-Ge) and amorphous-like carbon films with a grain size of
Externí odkaz:
https://doaj.org/article/8d5faacb6043429f8d0c8e24de37ed79
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-11 (2022)
Abstract Manganese oxide (Mn3O4) has garnered substantial attention as a low-cost, environment-friendly anode material. It undergoes a conversion reaction involving the formation of Li2O and metallic Mn to provide high-energy Li-ion batteries. Howeve
Externí odkaz:
https://doaj.org/article/2595d5ed0c07418c829b1dbec04640dd
Publikováno v:
KONA Powder and Particle Journal, Vol 40, Iss 0, Pp 14-28 (2021)
To create advanced materials with minimal energy consumption and environmental impacts, a green and sustainable powder processing technology is essential. The authors have developed this technique based on powder grinding technology. In this paper, t
Externí odkaz:
https://doaj.org/article/c3b92abbfefb4446b3665549a52d6ef6
Autor:
Takahiro Kozawa, Kayo Fukuyama, Kizuku Kushimoto, Shingo Ishihara, Junya Kano, Akira Kondo, Makio Naito
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
Abstract Mechanochemical reactions can be induced in a solution by the collision of balls to produce high-temperature and high-pressure zones, with the reactions occurring through a dissolution–precipitation mechanism due to a change in solubility.
Externí odkaz:
https://doaj.org/article/6dc17029465e4302badab9dda30ed469
Publikováno v:
Journal of Asian Ceramic Societies, Vol 8, Iss 2, Pp 309-317 (2020)
The cyclability of LiMn2O4 (LMO), a spinel cathode used in Li-ion batteries (LIBs), at high temperatures (>50°C) should be improved. In this study, we use an olivine-type LiMnPO4 (LMP) cathode with a composite structure as the surface material to im
Externí odkaz:
https://doaj.org/article/60e567b3acc4475aa2f9af9fbcd8a656
Autor:
Jingjing Li, Xiaoguang Li, Xiaoying Zhang, Jingxian Zhang, Yusen Duan, Xingbang Li, Dongliang Jiang, Takahiro Kozawa, Makio Naito
Publikováno v:
Materials & Design, Vol 208, Iss , Pp 109903- (2021)
Indoor gaseous pollutants pose a great threat to human health, graphene aerogel (GA) has attracted more and more attention due to its high adsorption performance. However, the increase of the adsorption capacity together with high strength for long t
Externí odkaz:
https://doaj.org/article/e15f3fcf55f8438bb7973e38190b311f