Negative permittivity behavior in silver nanowire-assisted polyaniline metacomposites induced by the low-frequency plasmonic oscillation
| Autor: | Kai Sun, Jiahong Tian, Zongxiang Wang, Jiahao Xin, Zhongyang Wang, Runhua Fan |
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| Rok vydání: | 2021 |
| Předmět: |
Permittivity
Free electron model Materials science business.industry Low frequency Condensed Matter Physics Plasma oscillation Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials chemistry.chemical_compound chemistry Percolation Polyaniline Electromagnetic shielding Optoelectronics Electrical and Electronic Engineering business Plasmon |
| Zdroj: | Journal of Materials Science: Materials in Electronics. 32:26851-26856 |
| ISSN: | 1573-482X 0957-4522 |
| Popis: | In this paper, silver nanowires/polyaniline (Ag/PANI) composites were prepared by an in situ synthesis method. Interestingly, the permittivity changed from positive to negative along with the formation of percolation network. The plasma oscillations of free electrons from the network made a dominant effect on the negative permittivity behavior. Further investigation revealed that the composites with negative permittivity presented inductive character. The polymer-based epsilon-negative composites can be applied to electromagnetic shielding, flexible electronic devices, and stretchable sensors. |
| Databáze: | OpenAIRE |
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