Thick-Film Negative-Temperature-Coefficient Thermistors with a Linear Resistance-Temperature Relation

被引:4
|
作者
Ling Zhi-Yuan [1 ]
He Lin [2 ]
机构
[1] S China Univ Technol, Coll Mat Sci & Engn, Dept Elect Mat Sci & Engn, Guangzhou 510640, Guangdong, Peoples R China
[2] Dongguan Univ Technol, Coll Elect Engn, Dongguan 523808, Peoples R China
关键词
ELECTRICAL-PROPERTIES; CO; STABILITY;
D O I
10.1088/0256-307X/30/10/107201
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The effect of the resistance.. of Mn1.85Co0.3Ni0.85O4 (MCN) thick-film negative-temperature-coefficient (NTC) thermistors on temperature T is studied carefully. Interestingly, the R-T relation is found to be decided simultaneously by the characteristic of the MCN oxide and the electrode structure of the NTC thermistor. For plane end electrodes, the R-T relation is nonlinear. However, for plane fork electrodes, the R-T relation can be linear. To clarify the intrinsic mechanism of the linear R-T relation, the electric field distribution in the MCN thick film is simulated. The obtained results suggest that the non-uniform electric field distribution between the electrodes is responsible for the R-T relation linearization.
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页数:4
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