材料科学技术（英文）,
2013, 29(1): 13-16.
1,
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2,
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3,
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4,
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5,
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6,
1.Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China; College of Science, Shandong University of Science and Technology, Qingdao 266510, China
2.Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China
3.Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China
4.Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China
5.Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China
6.Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China
基金项目:
the National Natural Science Foundation of China (.50802096,10904150 and 10904151)
Preparation and Characterization of Ca3Co4O9 Thin Films on Polycrystalline Al2O3 Substrates by Chemical Solution Deposition
Yankun Fu
1,
, Xianwu Tang
2,
, Jie Yang
3,
, Hongbin Jian
4,
, Xuebin Zhu
5,
, Yuping Sun
6,
1.Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China; College of Science, Shandong University of Science and Technology, Qingdao 266510, China
2.Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China
3.Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China
4.Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China
5.Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China
6.Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China
Keywords：
Chemical solution deposition
Ca3Co4O9 thin films have been first prepared on polycrystalline Al2O3 substrates using chemical solution deposition method by multiple annealing processing.It is observed that the derived thin films are c-axis oriented although the substrates are polycrystalline Al2O3 substrates,suggesting the self-assembled c-axis orientation.The annealing temperature effects on the properties are investigated and discussed.The best performances are attributed to the 850 ℃-annealed sample,whose resistivity,Seebeck coefficient and power factor at 300 K are 7.4 mΩ cm,117 μV/K and 0.18 mW/m K-2 respectively,which is even better than those of the thin films deposited on single crystal substrates.The results will provide an effective route to optimize the properties of Ca3Co4O9 thin films using chemical solution deposition by multiple annealing processing even the substrates are polycrystalline.
参考文献
| [1] |
L. Zhang;G.H. Liu;Y.B. Li;J.R. Xu;X.B. Zhu;Y.P. Sun .Simple chemical solution deposition of Ca_3Co_ 4O_9 films directly on Si substrates[J].Materials Letters,2008(8/9):1322-1324. |
