Počet záznamů: 1
Ion transmission spectroscopy of pores filled with Au nanoparticles
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SYSNO ASEP 0541435 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Ion transmission spectroscopy of pores filled with Au nanoparticles Tvůrce(i) 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)Celkový počet autorů 7 Zdroj.dok. Nuclear Instruments & Methods in Physics Research Section B. - : Elsevier - ISSN 0168-583X
Roč. 491, MAR (2021), s. 29-33Poč.str. 5 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova ion track membranes ; ion transmission ; pores ; Pulse Laser deposition ; gold nanoparticles ; encapsulation Vědní obor RIV BG - Jaderná, atomová a mol. fyzika, urychlovače Obor OECD Materials engineering CEP GA18-07619S GA ČR - Grantová agentura ČR LM2015056 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Výzkumná infrastruktura CANAM II - 90056 - Ústav jaderné fyziky AV ČR, v. v. i. Způsob publikování Omezený přístup Institucionální podpora UJF-V - RVO:61389005 UT WOS 000620824300004 EID SCOPUS 85100384413 DOI 10.1016/j.nimb.2021.01.016 Anotace 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. Pracoviště Ústav jaderné fyziky Kontakt Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Rok sběru 2022 Elektronická adresa https://doi.org/10.1016/j.nimb.2021.01.016
Počet záznamů: 1