Research on electromagnetic wave absorbing properties of nano tetraleg ZnO

被引：12

作者：

Cao Jia-Wei ^{[1
]}

Huang Yun-Hua ^{[1
]}

Zhang Yue ^{[1
,2
]}

Liao Qing-Liang ^{[1
]}

Deng Zhan-Qiang ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, Dept Mat Phys & Chem, Beijing 100083, Peoples R China

[2] Univ Sci & Technol Beijing, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China

来源：

ACTA PHYSICA SINICA | 2008年 / 57卷 / 06期

关键词：

nano tetraleg ZnO; wave-absorbing property; reflectivity; wave-absorbing mechanism;

D O I：

10.7498/aps.57.3641

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Wave-absorbing coating samples were fabricated with nano tetraleg ZnO as the absorbent and epoxy resin as the binder. The influence of the content of nano tetrapleg ZnO in the absorbing coatings and the thickness of the coatings on wave-absorbing property was investigated. The results showed that excellent absorption was observed in the wave band from 15 GHz to 18 GHz when the coating thickness was 1.5 mm. When the coating thickness increased to 3.5 mm, the wave-absorbing property of the samples was improved significantly, especially in the wave band from 6 GHz to 11 GHz. The frequency width reached 13.6 GHz (4.4-18 GHz) when the reflection value of the samples was below -5 dB, its wave-absorbing property has obviously improved compared with that of the micrometer sized ZnO. Finally, the wave-absorbing mechanism of nano tetraleg ZnO was discussed. Such coatings are of great values in applications involving electromagnetic wave shielding.

引用

页码：3641 / 3645

页数：5

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