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The preparation of c-axis epitaxial Bi-2212 films on STO(1 0 0) by sol-gel method |
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| Authors: | Xiaoming Yu Huazhe Yang Yang Qi |
| Affiliation: | a Institute of Materials Physics and Chemistry, School of Sciences, Northeastern University, Shenyang 110004, PR China b Department of Biophysics, College of Basic Medical Science, China Medical University, Shenyang, 110001, PR China c Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, PR China d Key Laboratory for Anisotropy and Texture of Materials, Ministry of Education, Northeastern University, Shenyang 110004, PR China |
| Abstract: | Bi2Sr2Ca1Cu2O8+δ (Bi-2212) films were grown on (1 0 0) oriented SrTiO3 (STO) substrate using sol-gel spin-coating method. The effects of heat treatment conditions and coating times on the phase formation and surface morphology were investigated using thermal analysis, optical microscope, X-ray diffraction, and scanning electronic microscopy. Mixed phases were formed from 820 to 840 °C, and Bi-2212 single phase was obtained at 830 °C for 3 h. c-axis epitaxial films with smooth surfaces were obtained by drying at 600 °C and coating for 5 times. |
| Keywords: | Bi2Sr2Ca1Cu2O8+δ films STO(1 0 0) Sol-gel Morphology |
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