NonlinearI-V characteristics study of doped SnO2 |
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| Authors: | S. R. Dhage V. Ravi S. K. Date |
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| Affiliation: | (1) Physical and Materials Chemistry Division, National Chemical Laboratory, 411 008 Pune, India |
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| Abstract: | When tin oxide is doped with Sb2O3 and CoO, it shows highly nonlinear current (I)-voltage (V) 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, α = 30 and the breakdown voltage is 120 V/mm. |
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| Keywords: | Varistors SnO2 nonlinear coefficient breakdown voltage |
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