| 陶瓷片表面处理对p-PAn/n-BaTiO3复合材料性能的影响 |
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| 引用本文： | 曲远方,郑占申,马卫兵.陶瓷片表面处理对p-PAn/n-BaTiO3复合材料性能的影响[J].材料研究学报,2000,14(Z1):181-185. |
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| 作者姓名： | 曲远方 郑占申 马卫兵 |
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| 作者单位： | 天津大学 |
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| 摘 要： | 用电化学方法在n型BaTiO3陶瓷表面进行苯胺的聚合,制备了具有p-n异质结的p-PAn/n-BaTiO3复合材料.测定了电流-电压特性曲线和压敏非线性系数α值,发现此材料具有良好的整流特性用电子扫描显微镜观察分析了聚苯胺的表面形态和异质结的界面形态.讨论了陶瓷片表面的处理对异质结性能的影响.
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| 关 键 词： | p-PAn/n-BaTiO3 复合材料 Ⅰ-Ⅴ特性 压敏非线性系数陶瓷表面的处理 |
| 文章编号： | 1005-3093(2000)S0-0181-05 |
| 修稿时间： | 1999年5月31日 |
INFLUENCE OF BaTiO3 CERAMICS' SURFACE TREATMENT ON THE CHARACTERISTICS OF p-PAn/n-BaTiO3 COMPOSITE |
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| QU Yuanfang,ZHENG Zhanshen,MA Weibing.INFLUENCE OF BaTiO3 CERAMICS'''' SURFACE TREATMENT ON THE CHARACTERISTICS OF p-PAn/n-BaTiO3 COMPOSITE[J].Chinese Journal of Materials Research,2000,14(Z1):181-185. |
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| Authors: | QU Yuanfang ZHENG Zhanshen MA Weibing |
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| Abstract: | A p-type polyaniline (PAn) film was electrochemically polymerized directly on an n-type baritium titanate (BaTiO3) ceramics and thus a p-PAn/n-BaTiO3 composite was fabricated. It is demonstrated experimentally that the composite with p-n heterojunction showed rectifying characteristics. The Current-voltage (I-V) characteristics and the varistor coefficient or of the composite were measured, and the interface of the two semiconducting materials was testified by a scanning electronic microscope (SEM) section analysis. The influence of the BaTiO3 ceramics' surface treatment on the microstructure and voltage-sensitive characteristics of the composite was studied. |
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| Keywords: | p-PAn/n-BaTiO3 composite current-voltage (I-V) characteristics voltage-sensitive nonlinear coefficient surface treatment of ceramics |
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