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Solution Processing of YBa2Cu3OT7-x Thin Films

Published online by Cambridge University Press:  10 February 2011

A. Singhal ,
M. Paranthaman ,
E. D. Specht ,
R. D. Hunt ,
D. B. Beach ,
P. M. Martin  and
D. F. Lee
A. Singhal
Affiliation:
Chemical and Analytical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee - 37831
M. Paranthaman
Affiliation:
Chemical and Analytical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee - 37831
E. D. Specht
Affiliation:
Metals and Ceramic Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee - 37831
R. D. Hunt
Affiliation:
Chemical Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee - 37831
D. B. Beach
Affiliation:
Chemical and Analytical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee - 37831
P. M. Martin
Affiliation:
Metals and Ceramic Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee - 37831
D. F. Lee
Affiliation:
Metals and Ceramic Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee - 37831
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Abstract

The aim of this work was to develop a non-vacuum chemical deposition technique for YBa2Cu3O7-x (YBCO) coated conductors on rolling-assisted biaxially textured substrates (RABiTS). We have chosen the metal-organic decomposition (MOD) and sol-gel precursor routes to grow textured YBCO films. In the MOD process, yttrium 2-ethylhexonate, barium neodecanoate, copper 2-ethylhexonate and toluene were used as the starting reagents. YBCO films processed by the MOD method on SrTiO3 (100) single crystal substrates were predominately epitaxial and consisted of c and a-axis oriented material. Films have a TC,onset of 89K and the best superconducting transition temperature of 63K. Films pyrolyzed at 525 °C and subsequently annealed at 780 °C in P(O2) of 3.5 × 10−4 atm contained YBCO phase predominately in a-axis orientation. In the sol-gel route, yttrium-isopropoxide, barium metal, copper methoxide and 2-methoxyethanol were used as the starting reagents. Sol-gel YBCO films on SrTiO3 substrates were epitaxial and c-axis oriented.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 495: Symposium W – Chemical Aspects of Electronic Ceramics Processing , 1997 , 203
Copyright
Copyright © Materials Research Society 1998

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References

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