Effects of swift heavy ion irradiation on the InAs and Zn-based nanoparticles ion-beam synthesized in silica

Vlasukova L. Komarov F. Makhavikou M. van Vuuren A. Skuratov V. Dauletbekova A. Neethling J. Wendler E. Zuk J. Parkhomenko I. Milchanin O.
February 2023 Elsevier Ltd

Vacuum
2023 #208

Till now, a shape elongation effect under swift heavy ions (SHI) irradiation was observed predominantly for metal nanoparticles (NPs). We report this effect for InAs and Zn(core)/ZnO(shell) NPs embedded in silica matrix. In case of InAs NPs, SHI irradiation results in the formation of nanorods. A diversity of elongated features is observed for Zn-based NPs: chains of small ZnO clusters, elongated (Zn)core/(ZnO)shell structures and drop-like elongated Zn particles. The intense silica sputtering due to electronic excitations has been found for the “SiO₂ + Zn-based NPs” composite. Photoluminescence (PL) spectroscopy reveals an emission in the visible range for both nanocomposites before SHI irradiation. This emission is attributed to the oxygen excess-related defect (NBOHC) as well as to the oxygen deficiency-related centres created in silica matrix during the implantation of cluster-forming ions (In + As or Zn). An intensive band in the spectral region of 2.8–3.1 eV is observed in PL spectrum of annealed “SiO₂ + InAs NPs” composite. SHI irradiation results in its quenching and formation of an asymmetrical band centred at 1.9 eV. In case of “SiO₂ + Zn-based NPs”, SHIs irradiation results in substantial increase of PL in orange spectral range.

InAs nanocrystals , Ion-shaping , SiO₂ , SiO₂ sputtering , Swift heavy ions , Zn-based nanoparticles

Text of the article Перейти на текст статьи

Belarusian State University, Nezavisimosty Ave. 4, Minsk, 220030, Belarus
A.N. Sevchenko Institute of Applied Physical Problems, Kurchatova Str. 7, Minsk, 220045, Belarus
Centre for High Resolution Transmission Electron Microscopy, Nelson Mandela University, Bldg 124, Bushbuck Rd, South Campus, Port Elizabeth, 6001, South Africa
Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research, Dubna, 141980, Russian Federation
L.N. Gumilyov Eurasian National University, Munaitpasov Str. 5, Astana, 010008, Kazakhstan
Friedrich-Schiller University Jena, Max-Wien-Platz 1, Jena, D-07743, Germany
Maria Curie-Skłodowska University, Pl. M. Curie-Skłodowskiej 1, Lublin, 20-031, Poland

Belarusian State University
A.N. Sevchenko Institute of Applied Physical Problems
Centre for High Resolution Transmission Electron Microscopy
Flerov Laboratory of Nuclear Reactions
L.N. Gumilyov Eurasian National University
Friedrich-Schiller University Jena
Maria Curie-Skłodowska University

10 лет помогаем публиковать статьи Международный издатель

Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026