| Title: | Near-surface processes of beam-sensitive materials under low energy electron irradiation |
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| Authors: | ID Hameli, Ibrahim, Institut "Jožef Stefan" (Author)
ID Shvalya, Vasyl, Institut "Jožef Stefan" (Author)
ID Santhosh, Neelakandan Marath, Institut "Jožef Stefan" (Author)
ID Kurtishaj Hamzaj, Ardita, Institut "Jožef Stefan" (Author)
ID Baranov, Oleg, Institut "Jožef Stefan" (Author)
ID Cvelbar, Uroš, Institut "Jožef Stefan" (Author)
ID Zavašnik, Janez, Institut "Jožef Stefan" (Author) |
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| Files: |  URL - Source URL, visit https://www.sciencedirect.com/science/article/pii/S0169433225023396
 PDF - Presentation file, download (8,27 MB)
MD5: DC0C5BC21666733E83A820B3A41FAD12
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| Language: | English |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: |  IJS - Jožef Stefan Institute
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| Abstract: | We investigate the interactions and modifications induced by low-energy electron beam irradiation in beamsensitive materials, with crystalline gold trichloride (AuCl3) as a model system. Employing scanning electron microscopy (SEM) coupled with energy-dispersive X-ray spectroscopy (EDS) in an operando setup, we investigated surface and bulk transformations as a function of irradiation time (0–1080 s) and accelerating voltage (1–30 kV). Irreversible structural changes were observed both on the surface and within the bulk of the AuCl3 crystal. Surface analysis revealed the formation and growth of µm-sized vertically oriented carbon nanopillars, with voltage-dependent growth dynamics governed by backscattered (BSE) and secondary electrons (SE). At the same time, the bulk of the AuCl3 decomposed under carbon pillars, forming Au nanoparticles and near-surface voids whose size and spatial distribution correlated with the energy deposition profiles. The observed morphological and chemical alterations pose a significant obstacle to accurate chemical composition analyses by energy-dispersive X-ray spectroscopy (EDS) and suggest a narrow operating window for conducting reliable SEM analysis. |
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| Keywords: | beam sensitive materials, electron beam interactions, electron radiation, gold chloride, carbon deposition |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Submitted for review: | 30.07.2025 |
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| Article acceptance date: | 12.09.2025 |
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| Publication date: | 23.09.2025 |
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| Publisher: | Elsevier |
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| Year of publishing: | 2026 |
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| Number of pages: | str. 1-11 |
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| Numbering: | Vol. 716, [article no.] 164623 |
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| Source: | Nizozemska |
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| PID: | 20.500.12556/DiRROS-23747  |
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| UDC: | 53 |
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| ISSN on article: | 1873-5584 |
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| DOI: | 10.1016/j.apsusc.2025.164623 |
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| COBISS.SI-ID: | 250889219 |
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| Copyright: | © 2025 The Author(s). |
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| Note: | Nasl. z nasl. zaslona;
Soavtorji: Vasyl Shvalya, Neelakandan M. Santhosh, Ardita Kurtishaj Hamzaj, Oleg Baranov, Uroš Cvelbar, Janez Zavašnik;
Opis vira z dne 29. 9. 2025;
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| Publication date in DiRROS: | 29.09.2025 |
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| Views: | 261 |
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| Downloads: | 130 |
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