Preparation and pyroelectrical investigation of bimorph polymer layers

Authors

  • S. Bauer-Gogonea,

    1. Heinrich-Hertz-Institut für Nachrichtentechnik, Einsteinufer 37, D-10587 Berlin, Germany
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  • S. Bauer,

    1. Heinrich-Hertz-Institut für Nachrichtentechnik, Einsteinufer 37, D-10587 Berlin, Germany
    Current affiliation:
    1. Institut für Festkörperphysik, Universität Potsdam, Am Neuen Palais 10, D-14469 Potsdam, Germany
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  • W. Wirges,

    1. Heinrich-Hertz-Institut für Nachrichtentechnik, Einsteinufer 37, D-10587 Berlin, Germany
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  • R. Gerhard-Multhaupt

    1. Heinrich-Hertz-Institut für Nachrichtentechnik, Einsteinufer 37, D-10587 Berlin, Germany
    Current affiliation:
    1. Institut für Festkörperphysik, Universität Potsdam, Am Neuen Palais 10, D-14469 Potsdam, Germany
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  • Dedicated to Prof. Wolfgang Eisenmenger on the occasion of his 65th birthday

Abstract

Two different procedures for the preparation of bimorph structures within nonlinear optical polymer layers are reported. One technique consists of thermally assisted poling above the glass-transition temperature followed by photo-induced poling below the glass-transition temperature. In this poling scheme, the second step is based on the photoisomerization of the dipole molecules. The other method comprises two consecutive thermally assisted poling steps with opposite field polarity in a double layer of two nonlinear optical polymers with different glass-transition temperatures. Pyroelectric thermal analysis is employed for analyzing the stability of the resulting bimorph structures, while pyroelectric depth profiling allows for a non-destructive qualitative analysis of their polarization distributions.

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