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Degradation of polyimide under irradiation with swift heavy ions

Severin, Daniel ; Ensinger, Wolfgang ; Neumann, Reinhard ; Trautmann, Christina ; Walter, Gertrud ; Alig, Ingo ; Dudkin, Sergej :
Degradation of polyimide under irradiation with swift heavy ions.
In: Nuclear instruments & methods in physics research / B, 236 (1-4) pp. 456-460.
[Artikel], (2005)

Kurzbeschreibung (Abstract)

Stacks of polyimide foils were irradiated with different swift heavy ions (Ti, Mo, Au) of 11.1 MeV/nucleon energy and fluences between 1 × 1010 and 2 × 1012 ions/cm2. Beam-induced degradation of the imide group was analyzed by Fourier-transform infrared spectroscopy studying the absorption band at 725 cm−1 as a function of dose. In the UV–Vis spectral range, the absorption edge is shifted to larger wavelengths indicating carbonization. Such modifications are linked to the deposition of a critical dose of 2.7 MGy (Ti) and 1 MGy (Mo, Au). In addition, irradiation-induced changes of the electrical conductivity were studied by means of dielectric spectroscopy.

Typ des Eintrags: Artikel
Erschienen: 2005
Autor(en): Severin, Daniel ; Ensinger, Wolfgang ; Neumann, Reinhard ; Trautmann, Christina ; Walter, Gertrud ; Alig, Ingo ; Dudkin, Sergej
Titel: Degradation of polyimide under irradiation with swift heavy ions
Sprache: Englisch
Kurzbeschreibung (Abstract):

Stacks of polyimide foils were irradiated with different swift heavy ions (Ti, Mo, Au) of 11.1 MeV/nucleon energy and fluences between 1 × 1010 and 2 × 1012 ions/cm2. Beam-induced degradation of the imide group was analyzed by Fourier-transform infrared spectroscopy studying the absorption band at 725 cm−1 as a function of dose. In the UV–Vis spectral range, the absorption edge is shifted to larger wavelengths indicating carbonization. Such modifications are linked to the deposition of a critical dose of 2.7 MGy (Ti) and 1 MGy (Mo, Au). In addition, irradiation-induced changes of the electrical conductivity were studied by means of dielectric spectroscopy.

Titel der Zeitschrift, Zeitung oder Schriftenreihe: Nuclear instruments & methods in physics research / B
Band: 236
(Heft-)Nummer: 1-4
Verlag: Elsevier
Freie Schlagworte: Polyimide; Polymer degradation; Swift heavy ion irradiation
Fachbereich(e)/-gebiet(e): Fachbereich Material- und Geowissenschaften > Materialwissenschaften > Materialanalytik
Fachbereich Material- und Geowissenschaften > Materialwissenschaften
Fachbereich Material- und Geowissenschaften
Hinterlegungsdatum: 20 Nov 2008 08:20
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