Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Shunta Watanabe"'
Publikováno v:
Results in Materials, Vol 14, Iss , Pp 100289- (2022)
This work demonstrates a new processing technology termed magnetic energy intensive multifunction cavitation (MEI-MFC). In this technique, a strong magnetic field is used to concentrate the bubble energy while ultrasonic waves are applied from the pe
Externí odkaz:
https://doaj.org/article/41d21be708d14e9b97b057e08cd1d8e4
Autor:
Shunta Watanabe, Takashi Nakayama
Publikováno v:
Extended Abstracts of the 2020 International Conference on Solid State Devices and Materials.
Publikováno v:
Japanese Journal of Applied Physics. 61:021003
Metal-atom contamination often induces the degradation of organic molecular devices. In this work, we studied the clustering feature of Au and Al impurity metal atoms in pentacene solids by first-principles calculations. We found that Au atoms prefer
Autor:
Takashi Nakayama, Shunta Watanabe
Publikováno v:
Japanese Journal of Applied Physics. 60:125505
The effects of terminal molecules on metal-atom diffusion into alkane self-assembled-monolayer (SAM) films were studied using first-principles calculations. It was shown that the diffusion of Al and Au atoms easily occurs when the alkane molecules ha
Autor:
Shunta Watanabe, Takashi Nakayama
Publikováno v:
Japanese Journal of Applied Physics. 60:SBBG05
Extended defects such as grain boundaries (GBs) promote serious damage for carrier transport in organic molecular solids. In this work, we studied electronic structures of specific examples of stacking-fault (SF) and GB defects in pentacene films by
Autor:
Naokatsu Yamamoto, Keisuke Seki, Yasuyoshi Mitsumori, Kouichi Akahane, Kenta Asakura, Keiichi Edamatsu, Shunta Watanabe
Publikováno v:
Physical Review B. 97
We study the photon echo spectrum of self-assembled semiconductor quantum dots using femtosecond light pulses. The spectrum shape changes from a single-peaked to a double-peaked structure as the time delay between the two excitation pulses is increas
Autor:
Takashi Nakayama, Shunta Watanabe
Publikováno v:
Japanese Journal of Applied Physics. 58:SIIB28
The penetration and diffusion of metal atoms in self-assembled monolayers (SAMs) and pentacene solids were studied by first-principles calculations. It was shown in the case of SAM that metal atoms easily penetrate and diffuse in solids, reflecting t