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Conductive Polymer / Superconductor Sandwich Structures

Published online by Cambridge University Press:  21 February 2011

Steven G. Haupt,
Jianai Zhao,
Rung-Kuang Lo,
Ji-Ping Zhou and
John T. McDevitt
Steven G. Haupt
Affiliation:
Department of Chemistry & Biochemistry, The University of Texas at Austin, Austin, TX 78712.
Jianai Zhao
Affiliation:
Department of Chemistry & Biochemistry, The University of Texas at Austin, Austin, TX 78712.
Rung-Kuang Lo
Affiliation:
Department of Chemistry & Biochemistry, The University of Texas at Austin, Austin, TX 78712.
Ji-Ping Zhou
Affiliation:
Department of Chemistry & Biochemistry, The University of Texas at Austin, Austin, TX 78712.
John T. McDevitt
Affiliation:
Department of Chemistry & Biochemistry, The University of Texas at Austin, Austin, TX 78712.
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Abstract

Methods for characterizing the interface of conductive polymer/high-Tc superconductor sandwich structures are reported. Electrochemical procedures, such as cyclic voltammetry and chronoamperometry, are utilized to deposit conductive polymers directly onto bulk ceramic and thin film samples of YBa2Cu3O7-δ. Moreover, similar methods are utilized to cycle the polymer structures between their neutral (non-conductive) and oxidized (conductive) forms. Through changes in the polymer doping level, the superconducting properties of the high-Tc component can be modulated in a controllable and reproducible fashion. This paper focuses on an analysis of conductive polymer/superconductor interface phenomena as explored by electrochemical, resistivity vs. temperature and contact resistance measurements.

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References

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