Room-temperature laser deposition of GaAs nanocrystals on PMMA microspheres using particle fluidization

A modified pulsed laser deposition (PLD) was successfully employed to deposit GaAs nanocrystals on the surface of PMMA (polymethylmethacrylate) microspheres. This novel approach is distinguished by the fact that laser ablated materials are deposited uniformly onto the surface of spherical particles...

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Bibliographic Details
Published in:Applied physics. A, Materials science & processing Materials science & processing, 2007-06, Vol.87 (4), p.625-629
Main Authors: RYU, J. H, YOON, J.-W, LIM, C. S, SHIM, K. B
Format: Article
Language:English
Subjects:
Ablative materials
Applied physics
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Fluidizing
Gallium arsenide
Lasers
Materials science
Microspheres
Nanocrystalline materials
Nanocrystals
Nanoscale materials and structures: fabrication and characterization
Physics
Polymethyl methacrylate
Pulsed laser deposition
Pulsed lasers
Room temperature
X ray photoelectron spectroscopy
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Summary:A modified pulsed laser deposition (PLD) was successfully employed to deposit GaAs nanocrystals on the surface of PMMA (polymethylmethacrylate) microspheres. This novel approach is distinguished by the fact that laser ablated materials are deposited uniformly onto the surface of spherical particles that are held constantly in a particle fluidization unit. The XRD, SEM, EDX, TEM, EDP, and XPS results confirmed that cubic structured GaAs nanocrystals was deposited uniformly on the surface of PMMA microspheres with an average diameter of about 15 nm.
ISSN:0947-8396
1432-0630
DOI:10.1007/s00339-007-3862-7