Influence of Er on microstructural and dielectric properties of CaCu3Ti4O12

被引：4

作者：

Jesurani, S. ^{[1
,2
]}

Kanagesan, S. ^{[3
]}

Hashim, M. ^{[3
]}

Ismail, I. ^{[3
]}

Sabbaghizadeh, R. ^{[3
]}

机构：

[1] Jeyaraj Annapackium Coll Women, Dept Phys, Periyakulam 625601, Tamil Nadu, India

[2] SRM Univ, Dept Phys, Ctr Mat Sci & Nano Devices, Kattankulathur 603203, Tamil Nadu, India

[3] Univ Putra Malaysia, Inst Adv Technol ITMA, MSCL, Serdang 43400, Selangor, Malaysia

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2015年 / 26卷 / 01期

关键词：

CALCIUM COPPER TITANATE; DOPED CACU3TI4O12; PRECURSOR ROUTE; CERAMICS; NANOPARTICLES; BATIO3; OXIDE; PURE; MG;

D O I：

10.1007/s10854-014-2421-1

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Erbium-doped CaCu3Ti(4-x)ErxO12 (x = 0, 0.02, 0.1, 0.2, 0.5, 1.0)-(CCTEO) samples were synthesized by using the sol-gel method. The crystal structure did not change on doping with erbium; and it remained cubic when all the six compositions were studied. It was found that lattice parameter increased slightly with Erbium doping. AFM studies showed that the particle size of the CCTEO powder ranged from 52 to 97 nm. The surface morphology of the samples sintered at 1,040 A degrees C in air for 3 h was observed using a high resolution scanning electron microscope. It showed that the grain size was in the range of 0.7-5 A mu m for these samples. Er doping has been shown to reduce the dielectric loss remarkably while maintaining a high dielectric constant. This result indicates that 0.02 mol% of Er dopant can be used to improve the dielectric properties (dielectric constant- 164,000) of CaCu3Ti4O12.

引用

页码：456 / 463

页数：8

共 35 条

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