Preparation and characterization of YBa2Cu3O7-δ/polypyrrole bilayer structures

Steven G. Haupt, David R. Riley, James Grassi, Rung Kuang Lo, Jianai Zhao, Ji Ping Zhou, John McDevitt

Research output: Contribution to journalArticle

Abstract

Electrochemical techniques are exploited to fabricate conductive polymer/high-Tc superconductor bilayer structures. Scanning electron microscopy, atomic force microscopy, and electrochemical techniques are utilized to characterize the electrodeposition of polypyrrole layers grown onto YBa2CU3O7-δ films. In such hybrid polymer/ superconductor systems, it is found that, when the polymer is oxidized to its conductive state, the transition temperature (Tc) and critical currents (Tc) of the underlying superconductor film are suppressed. Reversible modulations of the transition temperatures of up to 50 K are noted for these structures. Upon reduction of the conductive polymer layer back to its nonconductive form, both Tc and Jc are found to return to values close to those acquired for the underivatized YBa2Cu3O7-δ film.

Original languageEnglish (US)
Pages (from-to)9979-9986
Number of pages8
JournalJournal of the American Chemical Society
Volume116
Issue number22
StatePublished - Nov 2 1994

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Polypyrroles
Polymers
Electrochemical Techniques
Superconducting materials
Transition Temperature
Superconducting transition temperature
Electroplating
Atomic Force Microscopy
Critical currents
Electrodeposition
Electron Scanning Microscopy
Atomic force microscopy
Modulation
Scanning electron microscopy
polypyrrole
barium copper yttrium oxide
Superconductivity

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Haupt, S. G., Riley, D. R., Grassi, J., Lo, R. K., Zhao, J., Zhou, J. P., & McDevitt, J. (1994). Preparation and characterization of YBa2Cu3O7-δ/polypyrrole bilayer structures. Journal of the American Chemical Society, 116(22), 9979-9986.

Preparation and characterization of YBa2Cu3O7-δ/polypyrrole bilayer structures. / Haupt, Steven G.; Riley, David R.; Grassi, James; Lo, Rung Kuang; Zhao, Jianai; Zhou, Ji Ping; McDevitt, John.

In: Journal of the American Chemical Society, Vol. 116, No. 22, 02.11.1994, p. 9979-9986.

Research output: Contribution to journalArticle

Haupt, SG, Riley, DR, Grassi, J, Lo, RK, Zhao, J, Zhou, JP & McDevitt, J 1994, 'Preparation and characterization of YBa2Cu3O7-δ/polypyrrole bilayer structures', Journal of the American Chemical Society, vol. 116, no. 22, pp. 9979-9986.
Haupt SG, Riley DR, Grassi J, Lo RK, Zhao J, Zhou JP et al. Preparation and characterization of YBa2Cu3O7-δ/polypyrrole bilayer structures. Journal of the American Chemical Society. 1994 Nov 2;116(22):9979-9986.
Haupt, Steven G. ; Riley, David R. ; Grassi, James ; Lo, Rung Kuang ; Zhao, Jianai ; Zhou, Ji Ping ; McDevitt, John. / Preparation and characterization of YBa2Cu3O7-δ/polypyrrole bilayer structures. In: Journal of the American Chemical Society. 1994 ; Vol. 116, No. 22. pp. 9979-9986.
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