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| YBa_2Cu_3O_(7-x)对氧的检测灵敏度和响应速度 | |
| 引用本文： | 朱志立,赵安庆,杨德林,李国星,郭益群,高之爽,胡行.YBa_2Cu_3O_(7-x)对氧的检测灵敏度和响应速度[J].低温与超导,2002,30(3):12-16. |
| 作者姓名： | 朱志立 赵安庆 杨德林 李国星 郭益群 高之爽 胡行 |
| 作者单位： | 1. 郑州大学物理工程学院材料物理实验室,450052 2. 河南农业大学物理教研室,郑州,450002 3. 郑州大学化学系,450052 |
| 基金项目： | 河南省自然科学基金，河南省教育厅自然科学基金，，，， |
| 摘 要： | 研究了高温超导体 YBa2 Cu3O7- x块材和厚膜在温度区间 40 0℃到 85 0℃电阻率随环境氧分压的变化关系 ,初步探索了其作为氧传感器材料的可能性。并研究了 YBa2 Cu3O7- x在不同温度条件下对氧的检测灵敏度和响应速度。实验表明 YBa2 Cu3O7- x对氧有较强的选择性 ,同一温度下电阻率随氧分压的增大而减小 ,且有较快的响应速度。氧分压减小时电阻率增大 ,块材响应速度较慢 ,但是制成厚膜后可提高其响应速度 |
| 关 键 词： | 高温超导体 YBa2Cu3O7-x 氧含量 电阻率 |
| 修稿时间： | 2002年4月22日 |
Sensitivity and Responding Speed Measurement of YBa2Cu3O7-x for Oxygen |
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| Abstract: | This paper presents the results of the investigations on the resistivity of high temperature superconductor YBa 2Cu 3O 7-x as a function of oxygen pressure in the range of 400℃-850℃ for both bulk and thick film samples, and investigated the possibility whether the YBa 2Cu 3O 7-x could be used as oxygen sensor material. Measurement of sensitivity for oxygen in different temperature is also studied. It shows that YBa 2Cu 3O 7-x has strong selectivity for oxygen, it's resistivity decreases very quickly with the increasing of oxygen partial pressure for both bulk and thick film samples. When the oxygen partial pressure decreases, responding speed of the bulk sample is slow, while the thick film sample has a much faster responding speed. |
| Keywords: | YBa2Cu3O7-x |
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