Synthesis of gold nanoparticles by solution plasma sputtering in various solvents

Gold clusters (average particle size is 1.5 nm) and nanoparticles (average particle size is 3.5 nm) with spherical morphology were fabricated by solution plasma sputtering in solution medium. This process was carried out in an open system under atmospheric pressure. During plasma region, rapid energ...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 417; no. 1; pp. 12030 - 5
Main Authors Hu, X L, Takai, O, Saito, N
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.03.2013
Subjects
Clusters
Diffusion
Gold
Liquid nitrogen
Morphology
Nanoparticles
Open systems
Particle size
Physics
Plasma
Plasma (physics)
Plasmons
Sputtering
Surface plasmon resonance
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Summary:Gold clusters (average particle size is 1.5 nm) and nanoparticles (average particle size is 3.5 nm) with spherical morphology were fabricated by solution plasma sputtering in solution medium. This process was carried out in an open system under atmospheric pressure. During plasma region, rapid energetic radicals' bombardment, atom vapour diffusion, plasma expansion and medium condensation resulted in the formation of gold nanoparticles from its electrode wires. As-fabricated gold particles have well crystalline even for less than 1 nm cluster. Gold nanoparticles with average size about 3.5 nm gave obviously surface plasmon resonance band at near 511 nm. While surface plasmon resonance band was disappearing for 1.5 nm-cluster formed in liquid nitrogen.
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ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/417/1/012030