Metallo-organic decomposition for superconductive YBa/sub 2/Cu/sub 3/O/sub 7-x/ film

Author

Teng, Kien F. ; Wu, Ping

Author_Institution

Dept. of Electr. Eng., Mississippi State Univ., MS, USA

Volume

12

Issue

1

fYear

1989

fDate

3/1/1989 12:00:00 AM

Firstpage

96

Lastpage

98

Abstract

Polycrystalline Y-Ba-Cu-O thin films were deposited on alumina and sapphire substrates by using a metallo-organic decomposition method. The metallo-organic precursors of yttrium, barium, and copper metal-carboxylates were synthesized and dissolved in a common solvent to make the ink. The ink was deposited by a multilayer spin-on coating technique followed by a thermal treatment. The treated films were polycrystalline, and the electrical results showed an onset temperature of about 90 K and a zero resistance temperature of 75 K. After thermal decomposition of the film in air at 925 degrees C and annealing in oxygen, a superconductive YBa/sub 2/Cu/sub 2/O/sub 7-x/ film was obtained. The principle of this method is discussed.<>

Keywords

barium compounds; coating techniques; high-temperature superconductors; superconducting thin films; yttrium compounds; 90 to 75 K; 925 C; Al/sub 2/O/sub 3/ substrates; high temperature superconductors; metallo-organic decomposition; metallo-organic precursors; multilayer spin-on coating; onset temperature; polycrystalline Y-Ba-Cu-O thin films; superconductive YBa/sub 2/Cu/sub 2/O/sub 7-x/ film; thermal decomposition; thermal treatment; zero resistance temperature; Ink; Solvents; Sputtering; Substrates; Superconducting films; Superconducting thin films; Superconductivity; Temperature; Thermal resistance; Yttrium barium copper oxide;

fLanguage

English

Journal_Title

Components, Hybrids, and Manufacturing Technology, IEEE Transactions on

Publisher

ieee

ISSN

0148-6411

Type

jour

DOI

10.1109/33.19018

Filename

19018