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首页> 外文期刊>Journal of Materials Science: Materials in Electronics >Frequency-dependent dielectric and electric modulus properties of Li–Ni–Sm–Fe–O spinel embedded in conducting polymer
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Frequency-dependent dielectric and electric modulus properties of Li–Ni–Sm–Fe–O spinel embedded in conducting polymer

机译：嵌入导电聚合物中的Li–Ni–Sm–Fe–O尖晶石的随频率变化的介电和电模量特性

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摘要

Conducting polymeric nanocomposite containing Li–Ni–Sm–Fe–O spinel was synthesized by the chemical oxidizing of aniline in the presence of LiNi0.5Sm0.08Fe1.92O4 particles. The dielectric and electric modulus properties of the as-prepared samples were investigated over a frequency range from 106 to 109 Hz. The dielectric constant (ε′), dielectric loss (ε″) and dissipation factor (tan δ) for all samples presented relatively high values at low frequency and were found to decrease with the frequency. The values of ε′, ε″ and tan δ of the nanocomposite were lower than that of the pristine PANI. Electric modulus analysis had been carried out to understand the electrical relaxation process. The dielectric relaxation time for the nanocomposite became longer due to the introduction of LiNi0.5Sm0.08Fe1.92O4 particles lowering the crystallinity of PANI. An erratum to this article can be found at http://dx.doi.org/10.1007/s10854-009-9911-6
机译：在LiNi 0.5 Sm 0.08 Fe 1.92 <的存在下，通过苯胺的化学氧化合成了包含Li–Ni–Sm–Fe–O尖晶石的导电聚合物纳米复合材料。 / sub> O 4 粒子。在10 6 至10 9 Hz的频率范围内研究了所制备样品的介电和电模量特性。所有样品的介电常数（ε'），介电损耗（ε''）和耗散因数（tanδ）在低频下均呈现相对较高的值，并且随频率降低。纳米复合材料的ε'，ε''和tanδ值低于原始PANI的值。进行了电模量分析以了解电弛豫过程。由于引入了LiNi 0.5 Sm 0.08 Fe 1.92 O 4 ，纳米复合材料的介电弛豫时间变长。降低PANI结晶度的颗粒。可以在http://dx.doi.org/10.1007/s10854-009-9911-6中找到本文的勘误表

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