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Colossal permittivity of Sb and Ga co-doped rutile TiO2 ceramics

文献类型：期刊论文

作者Fan, Jiangtao1; Leng, Senlin2; Cao, Zhenzhu1; He, Weiyan1; Gao, Yanfang1; Liu, Jinrong1; Li, Guorong3
刊名Ceramics International
出版日期2018
ISSN号02728842
DOI10.1016/j.ceramint.2018.09.279
英文摘要Material with colossal permittivity (CP) is important for the miniaturization of electronic devices and fabrication of high-density energy storage devices. However, the unbalanced developments of dielectric constant, dielectric loss and stability preclude its practical applications. In this work, we report that Sb + Ga co-doped TiO2 (SGTO) ceramics exhibit colossal permittivity and low dielectric loss. Especially, a high dielectric permittivity of 3.5 × 104 and a low dielectric loss of 0.06 at 1 kHz are obtained in the optimum composition with x = 0.02. The dielectric property shows high stability in wide temperature (25–130 °C) and frequency (20–106 Hz) range. XPS, complex impedance spectroscopy, I-V curve and frequency dependent dielectric constant under DC bias results indicate that electron-pinned defect-dipoles (EPDD) model, internal barrier layer capacitance (IBLC) effect and electrode effect all contribute to the observed colossal permittivity behavior in (Sb0.5Ga0.5)xTi1-xO2 ceramics. © 2018 Elsevier Ltd and Techna Group S.r.l.
出版者Elsevier Ltd
源URL[http://ir.sic.ac.cn/handle/331005/25286]  
专题中国科学院上海硅酸盐研究所
作者单位1.Chemical Engineering College of Inner Mongolia University of Technology, Hohhot; 010051, China;
2.College of Material and Chemical Engineering, Tongren University, Tongren; 554300, China;
3.Key Laboratory of Inorganic Function Material and Device, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China
推荐引用方式
GB/T 7714		 Fan, Jiangtao,Leng, Senlin,Cao, Zhenzhu,et al. Colossal permittivity of Sb and Ga co-doped rutile TiO2 ceramics[J]. Ceramics International,2018.
APA Fan, Jiangtao.,Leng, Senlin.,Cao, Zhenzhu.,He, Weiyan.,Gao, Yanfang.,...&Li, Guorong.(2018).Colossal permittivity of Sb and Ga co-doped rutile TiO2 ceramics.Ceramics International.
MLA Fan, Jiangtao,et al."Colossal permittivity of Sb and Ga co-doped rutile TiO2 ceramics".Ceramics International (2018).

入库方式： OAI收割

来源：上海硅酸盐研究所

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