Varistor, Dielectric, and Luminescent Properties of Pr₆O₁₁-doped TiO₂ Multifunctional Ceramics

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• 作者：Yunyun Gong ; Ruiqing Chu ; Zhijun Xu ; Tongfu Dou ; Wenjing Zeng ; Xiannan Zhang ; Jigong Hao and Guorong Li
• 刊名：Journal of the American Ceramic Society
• 出版年：2016
• 出版时间：September 2016
• 年：2016
• 卷：99
• 期：9
• 页码：2995-3001
• 全文大小：1071K
• ISSN：1551-2916

文摘

A series of Pr₆O₁₁ (x = 0–0.70 mol%)-doped TiO₂ ceramics were synthesized by the conventional solid-state reaction method. The microstructure, electrical, and luminescence properties were systematically investigated. The results showed that the as-prepared TiO₂ ceramics exhibited strong red emission at 606 nm at room temperature and the optimal photoluminescence were obtained at x = 0.30. In addition, the nonlinear coefficient was improved with the amount of Pr₆O₁₁ dopant, reaching the maximum value at x = 0.50. Therefore, Pr₆O₁₁-doped TiO₂ ceramics, which simultaneously exhibited luminescent properties and good electrical properties, would be useful in novel multifunctional devices.