Impedance Spectroscopy of Sm-Doped of BaBi2Nb2O9 Aurivillius Ceramics

被引：0

作者：

Makowska, Jolanta ^{[1
]}

Rerak, Michal ^{[1
]}

Wodecka-Dus, Beata ^{[1
]}

Goryczka, Tomasz ^{[1
]}

Tytko, Grzegorz ^{[2
]}

Zawada, Anna ^{[3
]}

Adamczyk-Habrajska, Malgorzata ^{[1
]}

机构：

[1] Univ Silesia, Inst Mat Engn, Fac Sci & Technol, 75 Pulku Piechoty 1A, PL-41500 Chorzow, Poland

[2] Silesian Tech Univ, Fac Automatic Control Elect & Comp Sci, PL-44100 Gliwice, Poland

[3] Czestochowa Tech Univ, Dept Mat Engn, Armii Krajowej 19, PL-42200 Czestochowa, Poland

来源：

MATERIALS | 2024年 / 17卷 / 17期

关键词：

impedance spectroscopy; BaBi2Nb2O9; ceramics; Aurivillius structure; Sm3+; BISMUTH OXIDE LAYERS; DIELECTRIC-PROPERTIES; ELECTRICAL-PROPERTIES; AC CONDUCTION; LEAD; CHALCOGENIDE; SUBSTITUTION; MECHANISM; GLASSES; ENERGY;

D O I：

10.3390/ma17174360

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This investigation focuses on the impact of Sm3+ dopants on BaBi2Nb2O9 (BBN) ceramics. These ceramics were obtained using the traditional solid state reaction approach. Techniques like scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS) were employed to explore the structure and morphology of the ceramics. The results showed that the chemical composition of the ceramic samples matched well with the initial ceramic powder stoichiometry. Increasing the amount of samarium resulted in a slight reduction in the average ceramic grain size. The ceramics exhibited a tetragonal structure categorized under the space group I4/mmm. The electrical properties were analyzed using complex impedance spectroscopy (SI) across various temperatures and frequencies, revealing that both grains and intergranular boundaries are significant in the material's conductivity.

引用

页数：16

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