What question did this study set out to answer?

To explore how bonding rearrangements influence gas transport pathways in amorphous alumina films using XPS and simulations.

March 13, 2026Journal of Materials Chemistry A0 citationsOpen Access

Bridging classical and quantum interpretation of chemical state analysis by XPS/HAXPES to resolve short-range order in amorphous alumina films

SGSimon GramatteCentre National de la Recherche Scientifique XWX. WangPaul Scherrer Institute MBMichael Alejandro Hernández BertránIstituto Nanoscienze

Key Points

To explore how bonding rearrangements influence gas transport pathways in amorphous alumina films using XPS and simulations.
Used X-ray photoelectron spectroscopy (XPS) and hard X-ray photoelectron spectroscopy (HAXPES) for analysis.
Conducted atomistic simulations to complement experimental findings.
Examined thermally driven bonding rearrangements in alumina.
Identified the emergence of nanoscale gas transport pathways in alumina films.
Demonstrated a strong link between thermal bonding changes and gas transport features.

Abstract

Combined XPS/HAXPES and atomistic simulations revealed that thermally driven bonding rearrangements are linked to the emergence of nanoscale gas transport pathways in alumina.

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