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Effect of UV/ozone treatment on the nanoscale surface properties of gold implanted polyethylene

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2014
Authors
Kisic, Danilo
Nenadović, Miloš
Štrbac, Svetlana
Adnađević, Borivoj K.
Rakočević, Zlatko Lj.
Article (Published version)
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Abstract
The effect of ultraviolet (UV) ozone treatment on the surface properties of gold implanted high density polyethylene (HDPE) was investigated at a nanoscale using Atomic Force Microscopy (AFM). HDPE samples were modified by the implantation of gold ions at a dose of 5 x 10(15) ions/cm(2), using energies of 50, 100, 150, and 200 keV, and subsequently treated with UV/ozone. AFM surface topography images revealed that after UV/ozone treatment, the surface roughness of all Au/HDPE samples increased, while Power Spectral Density function increased only for samples implanted using higher energies, with a maximum for 150 keV. The chemical surface composition was homogenous in all cases, which was evidenced by appearance of single peaks in the histograms obtained from the phase AFM images. For UV/ozone treated samples, the shift of the peaks positions in the histograms to the higher values of the phase lag with respect to untreated ones indicated the decrease of surface hardness. Besides, a sig...nificant change of fractal dimension of surface grains is observed after UV/ozone treatment.

Keywords:
Polyethylene / Gold / Ion implantation / UV/ozone / AFM / Surface roughness
Source:
Applied Surface Science, 2014, 307, 311-318
Publisher:
  • Elsevier Science Bv, Amsterdam
Projects:
  • Functional, Functionalized and Advanced Nanomaterials (RS-45005)

DOI: 10.1016/j.apsusc.2014.04.032

ISSN: 0169-4332

WoS: 000336596700045

Scopus: 2-s2.0-84901341527
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URI
http://cer.ihtm.bg.ac.rs/handle/123456789/1582
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