| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1681638 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms | 2010 | 4 Pages |
Abstract
Surface morphological changes and metal nanograin formation of polyethylene terephthalate films with tungsten ion implantation were studied. Tungsten ions were accelerated with a voltage of 40Â kV and implanted at fluences from 5Â ÃÂ 1016 to 2Â ÃÂ 1017Â cmâ2 using a metal vapor vacuum arc implanter. Scanning electron micrographs at the highest fluence show semi-spherical hills, indicating formation of tungsten nanograins on the polymer. The tungsten nanograin formation in the polymer film is confirmed by cross-sectional observation using transmission electron microscopy. Depth profiles of tungsten atoms obtained from energy dispersive X-ray spectra indicate densification and sputtering of the polymer surface layer during implantation. These results indicate that surface morphological change is related with the effects of a critical fluence and tungsten nanograin formation.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Surfaces, Coatings and Films
Authors
G. Zhou, R. Wang, T.H. Zhang,