期刊
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
卷 32, 期 22, 页码 26786-26797出版社
SPRINGER
DOI: 10.1007/s10854-021-07056-1
关键词
-
A novel polycrystalline perovskite compound was successfully elaborated using the chemical molten-salt process, with a specific tetragonal structure and electrical properties identified by impedance and modulus analyses. This compound exhibited a non-Debye relaxation behavior dominated by thermally activated charge carriers.
The chemical molten-salt process was used for the elaboration of a new polycrystalline perovskite compound of Ba0.97La0.02Ti0.95Nb0.04O3 (shortened in BLT0.95Nb0.04). Analysis of XRD patterns using Rietveld refinement reveals that the prepared sample crystallizes in single phase form, with a tetragonal structure, with a P4/mmm space group. Then, a simultaneous investigation of impedance and modulus was effectuated. Complex impedance plots confirm the existence of semicircular arcs which expressed by an electrical equivalent circuit to clarify the impedance consequences. Off-centered semicircular impedance plots makes obvious that the synthesis sample conforms to a non-Debye relaxation manner. Furthermore, it is typically controlled by thermally activated charge carriers. The reducing of resistance, with rising temperature (T), indicates a negative temperature coefficient of resistance, which highlighting that the relaxation process is dominated by the inter-grains.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据