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Development of Functional Surfaces on High-Density Polyethylene (HDPE) via Gas-Assisted Etching (GAE) Using Focused Ion Beams

Published online by Cambridge University Press:  09 December 2015

Meltem Sezen  and
Feray Bakan
Meltem Sezen
Affiliation:
Sabancı University Nanotechnology Research and Application Center (SUNUM), 34956 Orhanlı, Istanbul, Turkey
Feray Bakan*
Affiliation:
Sabancı University Nanotechnology Research and Application Center (SUNUM), 34956 Orhanlı, Istanbul, Turkey
*
*Corresponding author. feraybakan@sabanciuniv.edu
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Abstract

Irradiation damage, caused by the use of beams in electron and ion microscopes, leads to undesired physical/chemical material property changes or uncontrollable modification of structures. Particularly, soft matter such as polymers or biological materials is highly susceptible and very much prone to react on electron/ion beam irradiation. Nevertheless, it is possible to turn degradation-dependent physical/chemical changes from negative to positive use when materials are intentionally exposed to beams. Especially, controllable surface modification allows tuning of surface properties for targeted purposes and thus provides the use of ultimate materials and their systems at the micro/nanoscale for creating functional surfaces. In this work, XeF2 and I2 gases were used in the focused ion beam scanning electron microscope instrument in combination with gallium ion etching of high-density polyethylene surfaces with different beam currents and accordingly different gas exposure times resulting at the same ion dose to optimize and develop new polymer surface properties and to create functional polymer surfaces. Alterations in the surface morphologies and surface chemistry due to gas-assisted etching-based nanostructuring with various processing parameters were tracked using high-resolution SEM imaging, complementary energy-dispersive spectroscopic analyses, and atomic force microscopic investigations.

Keywords

focused ion beamgas-assisted etchingsurface modificationfunctionalized polymer surfacesnanostructuring
Type
Materials Applications and Techniques
Information
Microscopy and Microanalysis , Volume 21 , Issue 6 , December 2015 , pp. 1379 - 1386
Copyright
© Microscopy Society of America 2015 

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