Ag-Ba0.75Sr0.25TiO3 composites with excellent dielectric properties

被引：63

作者：

Huang, Jiquan ^{[1
]}

Cao, Yongge ^{[1
]}

Hong, Maochun ^{[1
]}

Du, Piyi ^{[2
]}

机构：

[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, Natl Engn Res Ctr Optoelect Crystalline Mat, Fuzhou 350002, Fujian, Peoples R China

[2] Zhejiang Univ, State Key Lab Silicon Mat, Hangzhou 310027, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 02期

关键词：

D O I：

10.1063/1.2836764

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The percolative ceramic composites of Ba0.75Sr0.25TiO3/Ag (BST/Ag) with dense microstructure were sintered at a low temperature of 960 degrees C. Excellent dielectric properties, such as high dielectric constant (epsilon(r)similar to 24 000), low dielectric loss, and high dielectric tunability, were reported. The dielectric constant is found to be nearly temperature and frequency independent. It is essential to introduce the low-melting-point metal of silver into BST ceramics for significantly enhancing the dielectric properties of the composites. The superproperties make it potential to be used for electronic devices such as high charge-storage capacitors and tunable filters. (c) 2008 American Institute of Physics.

引用

页数：3

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