期刊
THIN SOLID FILMS
卷 662, 期 -, 页码 76-82出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.tsf.2018.07.038
关键词
Transparent conductor; Electromagnetic interference shielding; Optical transparency; Uniform diffraction
类别
资金
- National Natural Science Foundation of China (NSFC) [61575075]
- Fundamental Research Funds for the Central Universities [HIT.NSRIF.2014020]
- Postdoctoral science-Research Development Foundation of Heilongjiang Province [LBH-Q13078]
- Natural Science Foundation of Heilongjiang Province [F2016014]
We present a transparent conductor composed of the flower-shaped multi-angle metal ring clusters (FMMRC) interface structure for simultaneous highly optical transparency with uniform light transmission and microwave shielding performance both theoretically and experimentally. The measured normalized optical transmittance of the FMMRC sample is similar to 95% covering the visible to near infrared spectra with a sheet resistance of similar to 5.6 Omega/sq., offering favorable conductivity as a transparent electromagnetic interference (EMI) shielding component. Particularly, the FMMRC structure shows a uniform light transmission with a homogeneous high-order diffraction distribution which introduces negligible impact on optical imaging and observation. In the meantime, both simulations and experimental results demonstrate the shielding effectiveness of the FMMRC structure is > 21 dB from 12 to 18 GHz, obtaining an excellent shielding performance for a single-layer metal structure with high optical transmittance. The proposed FMMRC is insensitive to the polarization direction due to the symmetrical arrangement. These excellent properties of the FMMRC structure represents the highest figure of merit single-layer metallic mesh ever reported, showing great potential in transparent EMI devices as well as transparent electrodes.
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