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Advanced Nanocomposite Polymer Films for Bimorphic Gas Sensors

Published online by Cambridge University Press:  21 March 2011

G. Gerlach ,
M. Guenther ,
G. Suchaneck ,
K. Sahre ,
K.-J. Eichhorn ,
A. Deineka  and
L. Jastrabik
G. Gerlach
Affiliation:
Dresden University of Technology, Institute for Solid State Electronics, 01062 Dresden, Germany
M. Guenther
Affiliation:
Dresden University of Technology, Institute for Solid State Electronics, 01062 Dresden, Germany
G. Suchaneck
Affiliation:
Dresden University of Technology, Institute for Solid State Electronics, 01062 Dresden, Germany
K. Sahre
Affiliation:
Institute of Polymer Research Dresden, Hohe Strasse 6, 01069 Dresden, Germany
K.-J. Eichhorn
Affiliation:
Institute of Polymer Research Dresden, Hohe Strasse 6, 01069 Dresden, Germany
A. Deineka
Affiliation:
Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 2, 182 21 Praque 8, Czech Republic
L. Jastrabik
Affiliation:
Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 2, 182 21 Praque 8, Czech Republic
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Abstract

Thin films of aromatic polymers such as polyimide (PI) and polyethersulfone (PES) find an extensive use in aerospace and electronic applications, in particular, as sensitive to moisture and gas uptake layers for bimorphic sensors. In this work, a complex investigation of the film composition, microstructure and physical properties of ion beam modified polymer films was carried out to optimize the moisture uptake. To modify thin films of polyimide and polyethersulfone 50, 130 and 180 keV boron ions with irradiation doses between 1013 and 1016 B+/cm2 were implanted. It could be shown, that partly destruction of chemical bonding under ion bombardment leads to the creation of new amorphous and graphite-like structures, which increase the modified surface film conductivity by several orders of magnitude and enhances the sensitivity of these nanocomposite films to moisture uptake.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 661: Symposium KK – Filled & Nanocomposite Polymer Materials , 2000 , KK2.8
Copyright
Copyright © Materials Research Society 2001

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References

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