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Ion transmission spectroscopy of pores filled with Au nanoparticles

SYSNO ASEP	0541435
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Ion transmission spectroscopy of pores filled with Au nanoparticles
Author(s)	Ceccio, Giovanni (UJF-V)_{ORCID, RID, SAI} Vacík, Jiří (UJF-V)_{RID, ORCID, SAI} Trusso, S. (IT) Cannavó, Antonino (UJF-V)_{ORCID, SAI} Horák, Pavel (UJF-V)_{RID, ORCID} Hnatowicz, Vladimír (UJF-V)_RID Apel, P. Yu. (RU)
Number of authors	7
Source Title	Nuclear Instruments & Methods in Physics Research Section B. - : Elsevier - ISSN 0168-583X Roč. 491, MAR (2021), s. 29-33
Number of pages	5 s.
Publication form	Print - P
Language	eng - English
Country	NL - Netherlands
Keywords	ion track membranes ; ion transmission ; pores ; Pulse Laser deposition ; gold nanoparticles ; encapsulation
Subject RIV	BG - Nuclear, Atomic and Molecular Physics, Colliders
OECD category	Materials engineering
R&D Projects	GA18-07619S GA ČR - Czech Science Foundation (CSF)
	LM2015056 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
Research Infrastructure	CANAM II - 90056 - Ústav jaderné fyziky AV ČR, v. v. i.
Method of publishing	Limited access
Institutional support	UJF-V - RVO:61389005
UT WOS	000620824300004
EID SCOPUS	85100384413
DOI	10.1016/j.nimb.2021.01.016
Annotation	Ion track membranes (ITM) are of long-term interest due to the high potential of applications in science and industry. However, the use of the membranes requires a detailed knowledge of (i) their structural parameters, i. e., the density and distribution of the ITM pores, the pore size (radius) and spatial shape, or (ii) the pore filling with other materials (demanding the knowledge of filling efficiency, filler confinement, or filler density). In this work, we studied the nuclear membranes prepared with pores of certain density and size and filled with Au nanoparticles. The analysis was carried out by Ion Transmission Spectroscopy (ITS). ITS is a nondestructive technique to determinate the spatial structure of (sub)micron inhomogeneities (pores, protrusions, etc.) in thin foils from the energy loss of even quasi-monoenergetic alpha particles (e.g., from a thin 241Am source) transmitted through the (empty or filled) pores. The reconstruction of the shape of the pores or pore fillings is performed by simulation of the transmission spectra using the MC code. The nuclear membranes were prepared by the irradiation of a thin polyethylene terephthalate with 157 MeV Xe+26 ions (with the fluence 10(6) cm(-2)) and the subsequent chemical etching in 9 M NaOH water solution at 50 degrees C for 40 min. The pores were filled with the Au nanoparticles (NPs) of a sub-micrometer size using the Pulse Laser Deposition (PLD), and studied by ITS. From the transmission spectra the shape of the pores filled (partially or fully) with Au NPs could be reconstructed. The ITM with pores filled with NPs were also analyzed by scanning electron microscopy (SEM). The results showed good agreement with the MC simulation of the ITS data.
Workplace	Nuclear Physics Institute
Contact	Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228
Year of Publishing	2022
Electronic address	https://doi.org/10.1016/j.nimb.2021.01.016

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