A general model of dielectric constant for porous materials

Xing Da Liu, Zhi Ling Hou*, Bao Xun Zhang, Ke Tao Zhan, Peng He, Kai Lun Zhang, Wei Li Song

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

60 Citations (Scopus)

Abstract

For eliminating the limits in the classical models, here we establish a general model for precisely predicting dielectric constant of porous materials. In this model, dielectric constant is independent on pore shapes when the pore size is far smaller than electromagnetic wavelengths; however, it depends on the porosities and correlation between the open pore direction and wave propagation direction. The structure factor β in the effective dielectric formula is 1 and 3 for through-hole and closed-pore materials, respectively. The experimental results are in good agreement with the model, suggesting a favorable tool for predicting dielectric properties of porous materials.

Original languageEnglish
Article number102902
JournalApplied Physics Letters
Volume108
Issue number10
DOIs
Publication statusPublished - 7 Mar 2016
Externally publishedYes

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