Nonlinear 𝐼�?����?? characteristics study of doped SnO2

Bulletin of materials science

V Ravi¹  S K Date¹  S R Dhage¹ 

[1] Physical and Materials Chemistry Division, National Chemical Laboratory, Pune 411 008, India$$Physical and Materials Chemistry Division, National Chemical Laboratory, Pune 411 008, IndiaPhysical and Materials Chemistry Division, National Chemical Laboratory, Pune 411 008, India$$

关键词: Varistors;    SnO2;    nonlinear coefficient;    breakdown voltage.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

When tin oxide is doped with Sb₂O₃ and CoO, it shows highly nonlinear current (𝐼)â€�?�voltage (ð‘�??) characteristics. Addition of CoO leads to creation of oxygen vacancies and helps in sintering of SnO₂. Antimony oxide acts as a donor and increases the conductivity. The results are nearly the same when antimony oxide is replaced by tantalum oxide. The observed nonlinear coefficient, ð›�? = 30 and the breakdown voltage is 120 V/mm.

【 授权许可】

Unknown