Field enhancement in hydrogen storage by periodic layered structures

Houria Hamouche*, Mohammed M Shabat, Guillaume Zoppi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

This paper investigates, through the field enhancement factor, the increase of hydrogen adsorption around the interface between a layer of hydrogen and a periodic layered structure under different incidence angles of an applied transverse magnetic polarized electromagnetic field. This periodic layered structure is composed of n-binary unit cells based on alternating a thin layer of gold with a thin layer of a metamaterial with equal negative relative permittivity while the relative permeability of the first and the second material's unit cell is considered equal to 1 and -1, respectively. We apply the effective medium theory to replace this layered structure with a single slab of a homogeneous material with an effective permittivity tensor and an effective permeability tensor. We use the Transfer Matrix Method to analyze the reflectivity spectra at the hydrogen/slab interface for adjustable layers’ thicknesses and then we derive the field enhancement factor. We obtain a significant increase of the field enhancement factor of the structure in comparison with the field enhancement factor around the interface between a layer of hydrogen and a structure composed of one gold layer.
Original languageEnglish
Article number102085
Number of pages13
JournalSurfaces and Interfaces
Volume32
Early online date30 May 2022
DOIs
Publication statusE-pub ahead of print - 30 May 2022

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