論文2019

名前をで表記しているメンバーは当研究室の学生・院生、で表記しているメンバーは当研究室の教員です。

原著論文

  1. Yuan-Ting Rachel Chau, Lianlian Deng, Mai Thanh Nguyen, and Tetsu Yonezawa
    “Monitor the Growth and Oxidation of Cu-nanoparticles in PEG after Sputtering”
    MRS Advances, in press.
    DOI: 10.1557/adv.2019.55 (Published (web) 24 January 2019)

    Abstract: Metallic Copper nanoparticles (Cu NPs) were obtained via sputtering of Cu target onto liquid polymer, i.e., poly(ethylene glycol), PEG, under vacuum condition. The Cu NPs growth significantly right after the sputtering deposition from 3.1 nm to 4.1 nm in 4 hours as monitored by TEM. There was negligible growth of NPs for longer time and completely PEG acts as the coating material of Cu NPs so no agglomeration was observed for 1 week. The challenge of characterization of Cu NPs was also discussed.

  2. Tetsu Yonezawa, Jiajia Shi, Hiroki Tsukamoto, and Mai Thanh Nguyen
    “Size-controlled Preparation of Alkylamine-stabilized Copper Fine Particles from Cupric Oxide (CuO) Micro-particles”
    MRS Advances, in press.
    DOI: 10.1557/adv.2019.91 (Published (web) 1 February 2019)

    Abstract: Size control of copper fine particles is highly important for their application for conductive materials. In this study, easy size tuning of the copper fine particles coated by n-hexylamine was achieved via controlling the ratio of n-hexylamine and the precursor CuO. The obtained particles were stable and had a hydrophobic surface. TG-DTA measurement revealed the formation of thin layer of n-hexylamine on the particles.