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Creation of Gold Nanoparticles in ZnO by Ion Implantation-DFT and Experimental Studies
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SYSNO ASEP 0538371 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Creation of Gold Nanoparticles in ZnO by Ion Implantation-DFT and Experimental Studies Author(s) Cajzl, J. (CZ)
Jeníčková, K. (CZ)
Nekvindová, P. (CZ)
Michalcová, A. (CZ)
Veselý, M. (CZ)
Macková, Anna (UJF-V) RID, ORCID, SAI
Malinský, Petr (UJF-V) RID, ORCID, SAI
Jagerová, Adéla (UJF-V) ORCID, SAI
Mikšová, Romana (UJF-V) RID, ORCID, SAI
Akhmadaliev, S. (DE)Number of authors 10 Article number 2392 Source Title Nanomaterials. - : MDPI
Roč. 10, č. 12 (2020)Number of pages 21 s. Publication form Online - E Language eng - English Country CH - Switzerland Keywords gold ; ZnO ; nanoparticles ; ion implantation ; luminescence ; DFT ; RBS Subject RIV JJ - Other Materials OECD category Nano-materials (production and properties) R&D Projects EF16_013/0001812 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) GA18-03346S GA ČR - Czech Science Foundation (CSF) Method of publishing Open access Institutional support UJF-V - RVO:61389005 UT WOS 000603115000001 EID SCOPUS 85097097866 DOI 10.3390/nano10122392 Annotation Three different crystallographic orientations of the wurtzite ZnO structure (labeled as c-plane, a-plane and m-plane) were implanted with Au+ ions using various energies and fluences to form gold nanoparticles (GNPs). The ion implantation process was followed by annealing at 600 degrees C in an oxygen atmosphere to decrease the number of unwanted defects and improve luminescence properties. With regard to our previous publications, the paper provides a summary of theoretical and experimental results, i.e., both DFT and FLUX simulations, as well as experimental results from TEM, HRTEM, RBS, RBS/C, Raman spectroscopy and photoluminescence. From the results, it follows that in the ZnO structure, implanted gold atoms are located in random interstitial positions -experimentally, the amount of interstitial gold atoms increased with increasing ion implantation fluence. During ion implantation and subsequent annealing, the metal clusters and nanoparticles with sizes from 2 to 20 nm were formed. The crystal structure of the resulting gold was not cubic (confirmed by diffraction patterns), but it had a hexagonal close-packed (hcp) arrangement. The ion implantation of gold leads to the creation of Zn and O interstitial defects and extended defects with distinct character in various crystallographic cuts of ZnO, where significant O-sublattice disordering occurred in m-plane ZnO. Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2021 Electronic address https://doi.org/10.3390/nano10122392
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