Role of ion density in growth, transport, and morphology of nanoparticles generated in plasmas

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Spatial distribution, growth, and morphology of the nanoparticle were investigated in the plasmas with relatively low and high ion densities. Our experimental results reveal that cauliflower-shaped amorphous nanoparticles are dominantly distributed throughout the entire plasma in the low ion density plasma while spherical crystalline particles are spread near the plasma edge in the high ion density plasma. Only agglomeration growth step of the nanoparticles was observed without molecular accretion growth step in the high density plasma. Based on the experimental and numerical results, the role of ion density in the growth mechanism and transport of the nanoparticles is discussed. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4746396]
Publisher
AMER INST PHYSICS
Issue Date
2012-08
Language
English
Article Type
Article
Keywords

DISCHARGES; PARTICLES; DUST

Citation

APPLIED PHYSICS LETTERS, v.101, no.8

ISSN
0003-6951
DOI
10.1063/1.4746396
URI
http://hdl.handle.net/10203/102654
Appears in Collection
NE-Journal Papers(저널논문)
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