Continuum-Spectral Modeling of Surface Roughness in Electron-Beam-Deposited GO/Ag Nanocomposite Thin Films.

Seyedeh Soheila Mousavi, Milad Mousavi, Davood Raoufi, Ágota Drégelyi-Kiss

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Article in Nanomaterials (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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4 authors.

Seyedeh Soheila MousaviDepartment of Physics, Faculty of Science, Bu-Ali Sina University, Hamedan 65174, Iran.

Milad MousaviBánki Donát Faculty of Mechanical and Safety Engineering, Óbuda University, 1034 Budapest, Hungary.

Davood RaoufiDepartment of Physics, Faculty of Science, Bu-Ali Sina University, Hamedan 65174, Iran.

Ágota Drégelyi-KissBánki Donát Faculty of Mechanical and Safety Engineering, Óbuda University, 1034 Budapest, Hungary.ORCID 0000-0002-1622-0820

Funding

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6 · The paper itself

Abstract

This study investigates the structural, chemical, and morphological characteristics of electron-beam-deposited GO/Ag nanocomposite thin films and establishes a compact continuum-spectral framework for quantifying their post-deposition roughness. Since atomic force microscope (AFM) measurements provide only the final, frozen morphology and no direct temporal information, distinguishing between transient and stationary spectra is not experimentally feasible within the limited AFM wavenumber band. In practice, the accessible power spectral densities (PSDs) show no resolvable deviation from the stationary form, and transient contributions cannot be uniquely identified. The stationary PSD is fitted directly to azimuthally averaged AFM spectra, allowing the smoothing coefficients, noise intensity, correlation length, and crossover scale to be extracted in a fully data-driven manner. The fitted model accurately reproduces the characteristic dual (k

Indexed as

continuum modelingelectron-beam depositionfractal/multifractal analysishurst exponentnanocomposite thin filmspower spectral density (PSD)surface roughness

Identifiers

PMID41972635

DOI10.3390/nano16070419

PMCPMC13074400

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