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Monitor the Growth and Oxidation of Cu-nanoparticles in PEG after Sputtering

Published online by Cambridge University Press:  24 January 2019

Yuen-ting Rachel Chau ,
Lianlian Deng ,
Mai Thanh Nguyen  and
Tetsu Yonezawa Open the ORCID record for Tetsu Yonezawa [Opens in a new window]
Yuen-ting Rachel Chau
Affiliation:
Division of Materials Science and Engineering, Faculty of Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo, Hokkaido060-8628, Japan
Lianlian Deng
Affiliation:
Division of Materials Science and Engineering, Faculty of Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo, Hokkaido060-8628, Japan
Mai Thanh Nguyen
Affiliation:
Division of Materials Science and Engineering, Faculty of Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo, Hokkaido060-8628, Japan
Tetsu Yonezawa*
Affiliation:
Division of Materials Science and Engineering, Faculty of Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo, Hokkaido060-8628, Japan
*
*(Email: tetsu@eng.hokudai.ac.jp)
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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.

Keywords

sputteringnanostructureCunanoscaletransmission electron microscopy (TEM)
Type
Articles
Information
MRS Advances , Volume 4 , Issue 5-6: Nanomaterials , 2019 , pp. 305 - 309
Copyright
Copyright © Materials Research Society 2019 

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