Preparation and study on the electromagnetic shielding capability of hollow octahedron CuS powders

Kai Ye; Chuanmin Xiao; Cunpeng Duan; Jun Yan; Daxiang Wang

doi:10.1117/12.3034297

5 July 2024 Preparation and study on the electromagnetic shielding capability of hollow octahedron CuS powders

Kai Ye, Chuanmin Xiao, Cunpeng Duan, Jun Yan, Daxiang Wang

Proceedings Volume 13183, International Conference on Optoelectronic Information and Functional Materials (OIFM 2024); 131830T (2024) https://doi.org/10.1117/12.3034297
Event: The 3rd International Conference on Optoelectronic Information and Functional Materials (OIFM 2024), 2024, Wuhan, China

Abstract

In the paper, a kind of cavity copper sulfide (CuS)uniform nano powders of perfect octahedron morphology, were synthesized by some typical ordinary processes, such as co-precipitation, reduction, vulcanization and etching, firstly. Then the powders were characterized by X-ray, SEM and BET respectively, for the analysis of CuS crystal structure and morphology. Testing results also confirmed that the obtained hollow nano copper sulfide powders possess high purity crystal structure, uniform microscopic morphology, as well as high specific surface area. Further, electromagnetic shielding capability of the CuS powders were checked by microwave vector network analyzer. The results indicated that the imaginary part of the complex permittivity of the powders locates in the range of 15-60, as were doped of 25%. Accordingly, the CuS powders possess strong infrared light absorption capacity, based on the theory of “the imaginary part is larger and the material has stronger absorption of light”. Further, as the thickness of the CuS powders smog riches 2mm, the electromagnetic wave attenuation may reach 60dB, and the powders smog will exhibit much better electromagnetic shielding performance. In summary, hollow octahedron copper sulfide powder of uniform morphology properties, with excellent electromagnetic shielding capabilities, were strategically synthesized by low-cost. The obtained powders are expected to be widely applied and used for electromagnetic shielding to against electronic reconnaissance, which provide a best model for exploring new electromagnetic shielding materials, also will promote the the progress of the related national defense abilities.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Kai Ye, Chuanmin Xiao, Cunpeng Duan, Jun Yan, and Daxiang Wang "Preparation and study on the electromagnetic shielding capability of hollow octahedron CuS powders", Proc. SPIE 13183, International Conference on Optoelectronic Information and Functional Materials (OIFM 2024), 131830T (5 July 2024); https://doi.org/10.1117/12.3034297

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KEYWORDS

Copper

Electromagnetism

Particles

Crystals

Sodium

Scanning electron microscopy

Absorption

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