2018 Fiscal Year Research-status Report
Fine Structure of Bimetallic Solid Solution Nanoparticles Dispersed in Liquid by Double-Head Matrix Sputtering
| Project/Area Number |
17K14072
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| Research Institution | Hokkaido University |
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Principal Investigator |
グエン タンマイ 北海道大学, 工学研究院, 助教 (00730649)
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| Project Period (FY) |
2017-04-01 – 2020-03-31
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| Keywords | double target head / nanopartiles / alloy / bimetallic / liquid polymer / sputtering onto liquid / plasmonic |
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| Outline of Annual Research Achievements |
The growth and oxidation of Cu nanoparticles prepared by sputtering onto liquid polyethylene glycol (PEG, M.W. = 600) have been investigated. Particle growth was observed with an increase in particle size over time. On the other hand, time-dependent oxidation of Cu nanoparticles was monitored and confirmed with fading of the surface plasmon resonance of metallic Cu and changing in color of the nanoparticle dispersions.
Published results of bimetallic alloy nanoparticles in this project were collected and reported in a review for metallic nanoparticles via sputtering onto liquids. The researches in preparation and formation of alloy nanoparticles using two immiscible metals as target for sputtering are in progress for publication.
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| Current Status of Research Progress |
Current Status of Research Progress
2: Research has progressed on the whole more than it was originally planned.
Reason
From the investigation of metals that form intermetallic compounds in the bulk-state, i.e., Cu and Au, and metals form complete solid solution in the bulk state, i.e. Au and Ag, the understanding of experimental set-up and parameters, analysis for resulting bimetal nanoparticles has been obtained. This helps quick access to the further study of on particle formation in immiscible bimetal system.
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| Strategy for Future Research Activity |
Year 2019.
1) Complete the study on particle formation for double-head sputtering of metals that are immiscible in the bulk
2) Study the influence of the liquid composition on particle formation, growth and stability
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