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Effect of chemically modified precursor solution on MOD-processed YBCO thin films  

Jaimoo Yoo (Dept. of Materials Engineering, Korea Institute of Machinery and Materials (KIMM))
Kim, Young-Kuk (Dept. of Materials Engineering, Korea Institute of Machinery and Materials (KIMM))
Jaewoong Ko (Dept. of Materials Engineering, Korea Institute of Machinery and Materials (KIMM))
Soonyoung Heo (Dept. of Materials Engineering, Korea Institute of Machinery and Materials (KIMM))
Hyungsik Chung (Ajou University)
Publication Information
Progress in Superconductivity and Cryogenics / v.5, no.3, 2003 , pp. 23-25 More about this Journal
Abstract
Effect of chemically modified precursor solution on YBCO coated conductor prepared by MOD-TFA method was investigated. YBCO thin films were deposited on (l00)-oriented single crystalline LaAlO$_3$ substrates by conventional MOD-TFA process. The microstructures of YBCO thin films contain maze-like patterns. The origin of this microstructure was delineated by compositional inhomogeneity during the pyrolysis process and it was shown that addition of diethanolamine (DEA) improve the microstructure of grown YBCO films. In addition, it was demonstrated that the chemical modification of precursor solution makes no harmful effect on biaxial texture of YBCO thin films.
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