MgO－CoO－NiO氧敏材料的缺陷化学及电导特性研究

Defect Chemistry and Conduction Properties of MgO-CoO-NiO Oxygen-Sensitive Materials

本文用点缺陷理论分析了ＭｇＯ－ＣｏＯ－ＮｉＯ系氧敏材料的缺陷模型．并测量了ＭｇＯ－ＣｏＯ－ＮｉＯ材料的高温电导与氧分压的关系．在实验的基础上，研究了该材料的缺陷化学及电导特性，对其禁带宽度及缺陷的热力学参数进行了理论估算．实验结果与理论分析吻合得较好．

The defect model and the relationship between conductivity and oxygen pressure at high temperature of MgO-CoO-NiO materials were investigated in this paper. The energy gap and the thermodynamic parameters of defects were estimated also. The experimental results are in good accordance with the theoretical values.