N+ surface doping on nanoscale polymer fabrics via ion implantation

Non-woven poly(vinyl alcohol) (PVA) fabrics composed of small diameter (∼110nm) fibers have been spun by an electrospinning technique and then have been modified by ion implantation. 1.7MeV N+ ion implantation with a dose of 1.2×1016ions/cm2 was applied on the fabrics through a metal foil at room te...

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Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Beam interactions with materials and atoms, 2006-08, Vol.249 (1-2), p.362-365
Main Authors: Ho Wong, Kenneth Kar, Zinke-Allmang, Martin, Wan, Wankei
Format: Article
Language:English
Subjects:
Ion implantation methods
Scanning electron microscopy (SEM)
Surface morphology
X-ray photoelectron spectroscopy (XPS)
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Summary:Non-woven poly(vinyl alcohol) (PVA) fabrics composed of small diameter (∼110nm) fibers have been spun by an electrospinning technique and then have been modified by ion implantation. 1.7MeV N+ ion implantation with a dose of 1.2×1016ions/cm2 was applied on the fabrics through a metal foil at room temperature. By using scanning electron microscopy (SEM), no surface morphology degradation has been observed on the fabric after the ion beam treatment. The diameter of the fibers has shrunk by 30% to about 74nm. X-ray photoelectron spectroscopy (XPS) and time-of-flight secondary ion mass spectrometry (ToF-SIMS) show that nitrogen surface doping was achieved and the formation of two new functional chemical groups (N–CO and C–N) in the PVA is observed.
ISSN:0168-583X
1872-9584
DOI:10.1016/j.nimb.2006.04.029