YBaCuO and TlBaCaCuO Superconductor Thin Films via an Electrodeposition Process

R. N. Bhattacharya, P. A. Parilla, R. Noufi

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44 Scopus Citations


Thin-film superconductors of YBaCuO (YBCO) and TIBaCaCuO (TBCCO) were fabricated via an electrodeposition process. The YBCO superconductor precursor thin films were deposited at potentials ranging from-2.5 to-4 V vs. an Ag/AgNO3 reference electrode. The YBCO films were deposited under both constant and pulsed-potential conditions. The post annealed YBCO films showed zero resistance of approximately 74 K on Ni, 78 K on MgO, and 91 K on ZrO2 substrates. The best critical current densities obtained for the YBCO films at 4 K and zero magnetic field and their respective substrates are as follows: 4000 A/cm2 on [100] ZrO2, 3960 A/cm2 on [100] MgO (constant potential), 5160 A/cm2 on [100] MgO (pulsed potential), 500 A/cm2 on a Ni strip, 325 A/cm2 on a Ni wire, and 500 A/cm2 on a Ag wire. The precursors of the superconducting TBCCO films were codeposited at a constant potential of-4 V and also under pulsed potential conditions. The post-annealed TBCCO films showed zero resistance at about 102 K on SrTiO3 substrate. The critical current density at 76 K of a TBCCO film deposited at constant potential on a silver coated SrTiO3 substrate was 20, 000 A/cm2 in zero magnetic field and 5, 000 A/cm2 in a 10 kOe field parallel to the film plane. The critical current density of pulsed potential deposited TBCCO film on SrTiO3 was 56, 000 A/cm2 at 76 K in zero field.

Original languageAmerican English
Pages (from-to)67-69
Number of pages3
JournalJournal of the Electrochemical Society
Issue number1
StatePublished - Jan 1992

Bibliographical note

Work performed by NREL and Los Alamos National Laboratory, Los Alamos, New Mexico

NREL Publication Number

  • ACNR/JA-212-12803


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