Field emission properties of nano-tendril bundles formed via helium plasma exposure with various additional impurity gases

Autor: Rongshi Zhang, Shin Kajita, Dogyun Hwangbo, Hirohiko Tanaka, Shuangyuan Feng, Noriyasu Ohno

Publikováno v: Materials Research Express, Vol 10, Iss 5, p 054002 (2023)

Nano-tendril bundles (NTBs) were formed on tungsten via helium (He) plasma exposure with various additional impurity gases, such as neon (Ne), nitrogen (N _2 ), and argon (Ar). The sizes of the NTBs showed different distributions with different addit

Externí odkaz: https://doaj.org/article/b46cada3d918488b8d8211852004c4a6

Novel optical diffuser based on fiberform nanostructure by efficient plasma route

Autor: Noriyasu Ohno, HIROHIKO TANAKA, Masayuki Tokitani, Ryo Yasuhara, Enhao Li, SHIN KAJITA, HIROKI NATSUME, SHUANGYUAN FENG

Optical diffusion is an essential process used to manage photons in a wide range of photoelectric systems. This work proposes an approach to fabricate novel optical diffusers by a plasma-processing technique, using helium plasma to form fiberform nan

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b9871a64f2f4b09c48969624b4f05d67
https://doi.org/10.1364/opticaopen.22697395

Rapid growth of nanostructure on tungsten thin film by exposure to helium plasma

Autor: Shuangyuan FENG, Shin KAJITA, Masayuki TOKITANI, Daisuke NAGATA, Noriyasu OHNO

Publikováno v: Plasma Science and Technology. 25:042001

A fiberform nanostructure was synthesized by exposing high-density helium plasma to a 100 nm thick tungsten thin film in the linear plasma device NAGDIS-II. After helium plasma exposure, the cross-section of samples was observed by a scanning electro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::78477780ee392adc8d8fcdef6317f8ba
https://doi.org/10.1088/2058-6272/ac9f2d

Optical Properties of Fiberform Nanostructured Tungsten in the Infrared Wavelength Range

Autor: Shuangyuan FENG, Shin KAJITA, Ryo YASUHARA, Ryota IMAZAWA, Masayuki TOKITANI

Publikováno v: Plasma and Fusion Research. 16:1206098-1206098

Fiberform nanostructured tungsten (FN-W) samples were synthesized by helium plasma irradiation with different irradiation times. It is shown that the optical reflectivity decreases significantly with the increase of the irradiation time, even in a lo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a6ab71f2e29179a744d6490fee8197a4
https://doi.org/10.1585/pfr.16.1206098

Accelerated/reduced growth of tungsten fuzz by deposition of metals

Autor: Hirohiko Tanaka, Thomas Morgan, J.W.M. Vernimmen, Shuangyuan Feng, Shin Kajita, D. Nagata, Rongshi Zhang, Yuki Hayashi, Noriyasu Ohno, Naoaki Yoshida

Publikováno v: Journal of Nuclear Materials, 548, 152844
Journal of Nuclear Materials, 548:152844. Elsevier
Shin Kajita, Thomas Morgan, Hirohiko Tanaka, Yuki Hayashi, Naoaki Yoshida, Daisuke Nagata, Jordy Vernimmen, Shuangyuan Feng, Rongshi Zhang, Noriyasu Ohno, Accelerated/reduced growth of tungsten fuzz by deposition of metals, Journal of Nuclear Materials, Volume 548, 2021, 152844, ISSN 0022-3115, https://doi.org/10.1016/j.jnucmat.2021.152844.

From the helium (He) plasma irradiations to tungsten performed in the Magnum-PSI device, the effects of deposition of metals on the helium-plasma induced fiberform nanostructures (fuzz) are discussed. It was found that fuzz was not formed at the cent

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4e669eb74a135094338a3ae7a4194897
https://nagoya.repo.nii.ac.jp/records/2001605