| The Effect of Ge-GeO2 Co-doping on Non-ohmic Behaviour of TiO2-V2O5-Y2O3 Varistor ceramic |
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| 作者姓名： | 康昆勇 甘国友 严继康 易建宏 张家敏 杜景红 赵文超 荣雪全 |
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| 基金项目： | Project supported by the National Natural Science Foundation of China |
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| 摘 要： | An investigation was made into the effect of doping with the elemental crystal Ge or/and GeO2 on the TiO2-V2O5-Y2O3 varistor ceramics. The result shows that as the doping contents of V2O5 and Y2O3 are 0.5 mol%, respectively, co-doping with 0.3 mol% Ge and 0.9 mol% GeO2 makes the highest α value (α = 12.8), the lowest breakdown voltage V1mA (V1mA = 15.8 V/mm) and the highest grain boundary barrier ΦB (ΦB = 1.48 eV), which is remarkably superior to the TiO2-V2O5-Y2O3 varistor ceramics undoped with Ge and GeO2 and mono-doped with Ge or GeO2. The TiO2-V2O5-Y2O3-Ge-GeO2 ceramic has the prospect of becoming a novel varistor ceramic with excellent electrical properties.
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| 关 键 词： | TiO2 varistor co-doping nonlinear coefficient breakdown voltage Ge and GeO2 |
Effect of Ge-GeO2 co-doping on non-ohmic behaviour of TiO2-V2O5-Y2O3 varistor ceramics |
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| Kang Kunyong,Gan Guoyou,Yan Jikang,Yi Jianhong,Zhang Jiamin,Du Jinghong,Zhao Wenchao and Rong Xuequan.The Effect of Ge-GeO2 Co-doping on Non-ohmic Behaviour of TiO2-V2O5-Y2O3 Varistor ceramic[J].Chinese Journal of Semiconductors,2015,36(7):073005-6. |
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| Authors: | Kang Kunyong Gan Guoyou Yan Jikang Yi Jianhong Zhang Jiamin Du Jinghong Zhao Wenchao and Rong Xuequan |
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| Affiliation: | Faculty of Materials Science and Engineering,Kunming University of Science and Technology,Kunming 650093,China;Key Laboratory of Advance Materials of Yunnan Province,Kunming 650093,China;Key Laboratory of Advance Materials of Precious-Nonferrous Metals,Ministry of Education,Kunming 650093,China |
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| Abstract: | |
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| Keywords: | TiO2 varistor co-doping nonlinear coefficient breakdown voltage Ge and GeO2 |
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