Dielectric behavior of Li and Ti co-doped NiO/PVDF composites

✍ Scribed by Z.-M Dang; J.-B Wu; L.-Z Fan; C.-W Nan

• Book ID: 104108297
• Publisher: Elsevier Science
• Year: 2003
• Tongue: English
• Weight: 328 KB
• Volume: 376
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/s0009-2614(03)01004-2

✦ Synopsis

The dielectric behavior of two kinds of Li and Ti co-doped NiO (LTNO)/polyvinylidene fluoride (PVDF) composite was studied at various different frequencies and temperatures. The effective dielectric constant of the percolative composite at 100 Hz is very high, i.e., e eff % 600, which is 60 times higher than that of the PVDF. The results also show that there is a remarkable difference in the dielectric constant of the composites with different LTNO fillers. Boundary layer capacitor effect and percolation theory can be used to explain the experimental results.