Journal
JAPANESE JOURNAL OF APPLIED PHYSICS
Volume 52, Issue 12, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.7567/JJAP.52.126202
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Funding
- Ministry of Education, Culture, Sports, Science and Technology, Japan [21110003]
- Japan Society for the Promotion of Science [24540540]
- CREST/JST, the Knowledge Cluster Initiative Tokai Region Nanotechnology Manufacturing Cluster
- Grants-in-Aid for Scientific Research [24540540, 21110003] Funding Source: KAKEN
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Three-dimensionally integrated micro-solution plasmas (3D IMSPs), in which microplasmas are generated in gas bubbles in an aqueous solution held in a porous dielectric material, have been applied to gold nanoparticle synthesis. Conventional solution plasma processes require additional chemicals to increase the electrical conductivity of the aqueous solution for generating plasmas. In contrast to this, 3D IMSPs have been found to generate plasmas without such a procedure when the aqueous solution has a low electrical conductivity as in the case of HAuCl4 for gold nanoparticle synthesis. The gold nanoparticle synthesis has been confirmed through the observation of optical absorption due to the plasmon resonance at 550 nm, and also through the characterization of their size, crystallinity, and composition by transmission electron microscopy and energy dispersive X-ray spectroscopy. (C) 2013 The Japan Society of Applied Physics
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