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

[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.

[学科分类] 材料工程

[关键词] Varistors;SnO2;nonlinear coefficient;breakdown voltage.