Black phosphorus nanoflakes/polyimide composite films with excellent dielectric and mechanical properties
| Autor: | Renxin Xu, Dewen Xu, Huajun Sun, Zhe Zeng, Jiali Ma, Rui Zhou |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Fabrication Materials science Composite number Dielectric Condensed Matter Physics 01 natural sciences Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials visual_art 0103 physical sciences visual_art.visual_art_medium Dielectric loss Ceramic Electrical and Electronic Engineering In situ polymerization Composite material Science technology and society Polyimide |
| Zdroj: | Journal of Materials Science: Materials in Electronics. 31:3303-3311 |
| ISSN: | 1573-482X 0957-4522 |
| DOI: | 10.1007/s10854-020-02878-x |
| Popis: | Polyimides (PIs) and their composites hold promise as low-cost alternatives to conventional ceramic-based dielectrics. Nevertheless, they are far unsatisfactory for practice applications, mainly resulting from the low interfacial compatibility between PI matrices and inorganic fillers. Herein, black phosphorous (BP) nanoflakes/PI composite films with outstanding dielectric and mechanical properties were fabricated via an in situ polymerization pathway. Owing to the hydrophilic surface of BP nanoflakes resulting from slight oxidation during fabrication, the robust noncovalent interaction between BP and PI can be formed, leading to good interfacial compatibility between the two domains and thus well dispersion of BP in PI. Even with a low BP content of 2 wt%, the composite can reach a high-permittivity value of 8.6 at 102 Hz and a low dielectric loss value of 0.02. Moreover, the BP/PI composite films inherited the good mechanical performance of PI matrix due to homogeneous dispersion and low loading of BP. |
| Databáze: | OpenAIRE |
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