Characterization of nanopores in PFA thin films

Porous membranes using synthetic polymers have been applied in several research methods and devices such as hydrophobic filters for removal of microorganisms and particles from air and other gases, and chromatography. We report in this paper a recent study of nanopore characterization fabricated in...

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Bibliographic Details
Published in:Surface & coatings technology 2009-06, Vol.203 (17), p.2493-2496
Main Authors: Minamisawa, Renato Amaral, Zimmerman, Robert Lee, Ila, Daryush
Format: Article
Language:English
Subjects:
AFM
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Ion Beam
Materials science
Methods of deposition of films and coatings
film growth and epitaxy
Nanofabrication
Nanopores
PFA
Physics
Porous Membranes
Surface treatments
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Summary:Porous membranes using synthetic polymers have been applied in several research methods and devices such as hydrophobic filters for removal of microorganisms and particles from air and other gases, and chromatography. We report in this paper a recent study of nanopore characterization fabricated in PFA thin film membranes using a homemade feedback controlled ion beam system adapted to a MeV Pelletron accelerator. Fluorpolymer membranes were bombarded with gold ions producing nanopores in a few minutes, with a diameter distribution controlled by the feedback system. The fabrication process is fast when compared with chemical etching techniques. Micro-Raman and AFM were used to characterize the pore properties.
ISSN:0257-8972
1879-3347
DOI:10.1016/j.surfcoat.2009.02.045