Preparation and characterization of YBa[sub 2]Cu[sub 3]O[sub 7[minus]delta]/polypyrrole bilayer structures

Journal Article · Wed Nov 02 04:00:00 EST 1994 · Journal of the American Chemical Society; (United States)

DOI:https://doi.org/10.1021/ja00101a019· OSTI ID:6923872

Haupt, S G; Riley, D R; Grassi, J; Lo, Rung-Kuang; Zhao, Jianai; Zhou, J P; McDevitt, J T ^[1]

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1. Univ. of Texas, Austin, TX (United States)

Electrochemical techniques are exploited to fabricate conductive polymer/high-T[sub c] superconductor bilayer structures. Scanning electron microscopy, atomic force microscopy, and electrochemical techniques are utilized to characterize the electrodeposition of polyrrole layers grown onto YBa[sub 2]Cu[sub 3]O[sub 7[minus][delta]] films. In such hybrid polymer/superconductor systems, it is found that, when the polymer is oxidized to its conductive state, the transition temperature (T[sub c]) and critical currents (J[sub c]) 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 T[sub c] and J[sub c] are found to return to values close to those acquired for the underivatized YBa[sub 2]Cu[sub 3]O[sub 7[minus][delta]] film. 45 refs., 10 figs., 1 tab.

• OSTI ID: 6923872
• Journal Information: Journal of the American Chemical Society; (United States), Journal Name: Journal of the American Chemical Society; (United States) Vol. 116:22; ISSN JACSAT; ISSN 0002-7863
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
360601 -- Other Materials-- Preparation & Manufacture
360606 -- Other Materials-- Physical Properties-- (1992-)
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400400 -- Electrochemistry
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CERAMICS
CHEMICAL REACTIONS
CHEMISTRY
COPPER COMPOUNDS
CRITICAL CURRENT
CUPRATES
CURRENTS
DEPOSITION
ELECTRIC CURRENTS
ELECTROCHEMISTRY
ELECTRODEPOSITION
ELECTROLYSIS
ELECTRON MICROSCOPY
FABRICATION
FILMS
HIGH-TC SUPERCONDUCTORS
LYSIS
MICROSCOPY
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXIDATION
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POLYMERS
SCANNING ELECTRON MICROSCOPY
SUPERCONDUCTORS
SURFACE COATING
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
YTTRIUM COMPOUNDS