Broadband dielectric spectroscopy of cellulose paper based on three-dimensional modelling: Mechanism analysis of temperature-dependent conduction and multiple dielectric relaxations

Shengkang Wang

doi:10.1016/j.jnoncrysol.2026.124134

Broadband dielectric spectroscopy of cellulose paper based on three-dimensional modelling: Mechanism analysis of temperature-dependent conduction and multiple dielectric relaxations

2026-05-01

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PRE

AI

S

Shengkang Wang

R

Ruiqi Liu

F

Fuchang Lin *

H

Hua Li

DOI：10.1016/j.jnoncrysol.2026.124134

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Abstract

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• Temperature-frequency 3D dielectric model enables unified description of spectra across different temperatures. • A broadband dielectric spectrum that fully captures four distinct processes is reconstructed. • The conduction process exhibits pronounced low-frequency dispersion (s≈0.93). • Broadened loss peaks propose three non-Debye relaxation polarization processes. • The dielectric parameters and their temperature dependences reveal the physical mechanisms of multiple processes.

Keywords:

Dielectric spectroscopy

Temperature-dependent conduction

Multiple relaxations

3D modeling

Cellulose paper

Broadband dielectric spectroscopy of cellulose paper based on three-dimensional modelling: Mechanism analysis of temperature-dependent conduction and multiple dielectric relaxations

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