研究者業績

本多 信一

ホンダ シンイチ  (Shin-ichi Honda)

基本情報

所属
兵庫県立大学 大学院 工学研究科 電気物性工学専攻 教授
学位
工学(大阪大学)

J-GLOBAL ID
201801013684947136
researchmap会員ID
B000347979

外部リンク

論文

 120
  • Shunjiro Fujii, Shin-ichi Honda, Yoshihiro Oka, Yuki Kuwahara, Takeshi Saito
    Materials 16(2) 2023年1月  査読有り
    Single-wall carbon nanotubes (SWCNTs) are promising materials for electronic applications, such as transparent electrodes and thin-film transistors. However, the dispersion of isolated SWCNTs into solvents remains an important issue for their practical applications. SWCNTs are commonly dispersed in solvents via ultrasonication. However, ultrasonication damages SWCNTs, forming defects and cutting them into short pieces, which significantly degrade their electrical and mechanical properties. Herein, we demonstrate a novel approach toward the large-scale dispersion of long and isolated SWCNTs by using hydrodynamic cavitation. Considering the results of atomic force microscopy and dynamic light-scattering measurements, the average length of the SWCNTs dispersed via the hydrodynamic cavitation method is larger than that of the SWCNTs dispersed by using an ultrasonic homogenizer.
  • 森下 裕貴, 藤井 俊治郎, 本多 信一, 久保 利隆, 清水 哲夫
    表面と真空 65(9) 388-393 2022年9月10日  査読有り
  • Wei Li, Jeng-Yu Ke, Yun-Xuan Ou-Yang, Ying-Xuan Lin, Ching-Hwa Ho, Kuei-Yi Lee, Shunjiro Fujii, Shin-ichi Honda, Hideaki Okado, Masamichi Naitoh
    Japanese Journal of Applied Physics 61(8) 086504-086504 2022年7月27日  査読有り
    Abstract The chemical vapor transport method was used in this research to synthesize MoS2 bulk. Through mechanical exfoliation, we limited the thickness of MoS2 flakes from 1 to 3 μm. In order to fabricate a p–n homogeneous junction, we used oxygen plasma treatment to transform the MoS2 characteristics from n-type to p-type to fabricate a p–n homogenous junction and demonstrate the charge neutrality point shift from −80 to +102 V successfully using FET measurement. The MoS2 p–n homogeneous junction diode showed an excellent p-n characteristic curve during the measurements and performed great rectifying behavior with 1–10 Vpp in the half-wave rectification experiment. This work demonstrated that MoS2 flake had great potential for p-n diodes that feature significant p–n characteristics and rectifying behavior.
  • Syusaku Nakamura, Wataru Nakamura, Shunjiro Fujii, Shin-ichi Honda, Masahito Niibe, Mititaka Terasawa, Yuji Higo, Keisuke Niwase
    Diamond and Related Materials 123 108828 2022年3月  査読有り
    To clarify the nature of defects presented in neutron (n)-irradiated highly oriented pyrolytic graphite (HOPG), in situ X-ray diffraction (XRD) observation at room temperature (RT) and high pressure was conducted with synchrotron radiation (SPring-8). We focused on the graphite (002) [G(002)] peak under compression to 18.1 GPa and also under decompression. For comparison, unirradiated HOPG was also placed in the same high-pressure cell. We found that the G(002) peak can be represented by two components, the S and L peaks, for the n-irradiated HOPG, whereas it can be represented by only one component for the unirradiated HOPG. The d-spacing for the n-irradiated and unirradiated HOPG samples gradually decreased with increasing pressure. At 18.1 GPa, the d-spacing of the S peak of the irradiated sample became almost the same as that of the unirradiated one, but that of the L peak was larger. Under decompression, the behavior of the d-spacing was almost opposite to that under compression, and the d-spacing was restored to its value before compression. Also, taking account of the changes in the peak widths, we referred to and considered irradiation-induced defects of interstitial-type defects existing between the basal planes and in-plane defects of dislocation dipoles as possible defects that affect the changes in the G(002) peak.
  • Shin-ichi Honda, Yuji Higo, Keisuke Niwase, Masahito Niibe, Mititaka Terasawa, Eiji Taguchi, Syusaku Nakamura
    Japanese Journal of Applied Physics 60(9) 095002 2021年9月  査読有り
    In situ X-ray diffraction observation was done for neutron-irradiated and un-irradiated highly oriented pyrolytic graphite (HOPG) samples with synchrotron radiation to clarify the effect of irradiation-induced defects on the transformation to diamond under high-pressure and high-temperature treatment. At 16 GPa, no remarkable change appeared for the irradiated HOPG with increasing the temperature up to 800 °C. At temperatures of 1200 °C and 1400 °C, hexagonal diamond was formed, along with the formation of cubic diamond. This is probably due to annealing of the irradiation defects that led to partial restoration of the structure to the original HOPG and then enables the formation. On the other hand, in un-irradiated HOPG, hexagonal diamond was formed at 400 °C, which changed to cubic diamond at 1200 °C or higher. We guess that irradiation defects promote the nucleation of cubic diamond in the irradiated sample and then contribute to the formation of isotropic polycrystalline diamond or amorphous diamond.

MISC

 32

書籍等出版物

 4

講演・口頭発表等

 11

共同研究・競争的資金等の研究課題

 13

産業財産権

 17