Chemical solution deposition of YBCO thin film by different polymer additives

A polymer-assisted chemical solution deposition approach has been proposed for the preparation of YBCO thin film. Different additives like PVB (polyvinyl butyral), PEG (polyethylene glycol) and PVP (polyvinylpyrrolidone) have been used to adjust the final viscosity of the precursor solution and thus...

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Bibliographic Details
Published in:Physica. C, Superconductivity Superconductivity, 2008-09, Vol.468 (15), p.1563-1566
Main Authors: Wang, W.T., Li, G., Pu, M.H., Sun, R.P., Zhou, H.M., Zhang, Y., Zhang, H., Yang, Y., Cheng, C.H., Zhao, Y.
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
COPPER OXIDE
DEPOSITION
DOPING
Exact sciences and technology
Fluorine-free
High-tc films
MICA
MOD
Physics
Polyethylene glycol
Polymer
POLYMERS
Polyvinyl acetal resins
Polyvinylpyrrolidone
Precursors
RESINS
Superconducting films and low-dimensional structures
SUPERCONDUCTIVITY
SUPERCONDUCTORS
THIN FILMS
YBCO film
YBCO superconductors
YTTRIUM OXIDE
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Summary:A polymer-assisted chemical solution deposition approach has been proposed for the preparation of YBCO thin film. Different additives like PVB (polyvinyl butyral), PEG (polyethylene glycol) and PVP (polyvinylpyrrolidone) have been used to adjust the final viscosity of the precursor solution and thus the film formation. In this fluorine-free approach, YBCO has been deposited on single crystal substrates with metal acetates being starting materials. Biaxially textured YBCO thin films have been obtained. However, different additives lead to different microstructure. Dense, smooth and crack-free YBCO film prepared with PVB as additive yields sharp superconducting transition around T c = 90 K as well as high J c (0 T, 77 K) over 3 MA/cm 2.
ISSN:0921-4534
1873-2143
DOI:10.1016/j.physc.2008.05.067