摘要
在Al2O3衬底上制备了Y1-xLaxBa2Cu3O7-δ(0≤x≤0.15)厚膜,研究了La部分替代Y对YBa2Cu3O7-δ氧传感器性能的影响和x=0.05样品的电阻与温度和氧分压的关系.与未掺杂膜相比较可看出,各组样品仍然表现出YBCO的基本性质,其中Y0.95La0.05Ba2Cu3O7-δ样品表现出较高的灵敏度和较短的恢复时间,是替代YBa2Cu3O7-δ作为氧传感器的良好的材料.
Y1-xLaxBa2Cu3O7-δ (0~x^0.15) thick films on Al2O3 subs trate were prepared. The effect of La partial substitution for Ba on the properties of YBa3Cu3O7—δ oxygen sensor and the relationship of resistance of .r= 0.05 sample with temperature and oxygen partial pressur was investigated. Comparing with the no-doped film , we can see that the films still stand on the nature of the YBCO, among which the Y0.95 La0.05 Ba2 Cu3 07-δ film have the higher sensitivity and shorter recovery time. It is the good material to take the place of YBa3Cu3O7—δ as the oxygen sensor.
出处
《河南大学学报(自然科学版)》
CAS
北大核心
2008年第4期357-359,共3页
Journal of Henan University:Natural Science
基金
河南省教育厅自然科学基金资助项目(200813140015)