Development of analysis of oxide ion diffusion to realize high-speed response for hot spot oxygen sensor

随着人们对能源和环境问题的关注以及对安全、可靠、舒适生活的需求，氧传感器越来越受到人们的关注。我们发现一种利用热点现象的氧传感器既不使用电解溶液，也不使用温度控制材料，也不使用金/铂电极。由于响应的改进是可行的，因此可以成为具有高灵活性和可靠性的传感器。本研究针对具有高速响应的热点氧传感器的研制进行了以下几个方面的研究：氧在物料中的扩散分析。2. 设计了提高氧在材料中扩散速度的成分和微观结构。3 .开发实现所需微观结构的制造方法。

Oxygen sensors are getting much attention related to the concern in energy and environmental problems and the demand to safe, secure and comfortable life. An oxygen sensor exploiting a hot spot phenomenon we have found uses neither electrolysis solution, temperature control of material nor gold/platinum electrodes. Since improvement in a response is feasible, it can become a sensor having high flexibility and reliability. In this research, the following points were investigated aiming at the development of a hot spot oxygen sensor having a high-speed response: 1. Analysis of the diffusion of oxygen in the material. 2. Design of the composition and microstructure which increase the diffusion velocity of oxygen in the material. 3 Development of the fabrication method which realizes desired microstructure.