Extremely rapid isotropic irradiation of nanoparticles with ions generated in situ by a nuclear reaction

Havlik, J, Petrakova, V, Kucka, J and Reineck, P., et al, 2018, 'Extremely rapid isotropic irradiation of nanoparticles with ions generated in situ by a nuclear reaction', Nature Communications, vol. 9, no. 1, pp. 1-10.


Document type: Journal Article
Collection: Journal Articles

Title Extremely rapid isotropic irradiation of nanoparticles with ions generated in situ by a nuclear reaction
Author(s) Havlik, J
Petrakova, V
Kucka, J
Reineck, P., et al,
Year 2018
Journal name Nature Communications
Volume number 9
Issue number 1
Start page 1
End page 10
Total pages 10
Publisher Nature Publishing Group
Abstract Energetic ions represent an important tool for the creation of controlled structural defects in solid nanomaterials. However, the current preparative irradiation techniques in accelerators show significant limitations in scaling-up, because only very thin layers of nanoparticles can be efficiently and homogeneously irradiated. Here, we show an easily scalable method for rapid irradiation of nanomaterials by light ions formed homogeneously in situ by a nuclear reaction. The target nanoparticles are embedded in B2O3 and placed in a neutron flux. Neutrons captured by 10B generate an isotropic flux of energetic α particles and 7Li+ ions that uniformly irradiates the surrounding nanoparticles. We produced 70 g of fluorescent nanodiamonds in an approximately 30-minute irradiation session, as well as fluorescent silicon carbide nanoparticles. Our method thus increased current preparative yields by a factor of 102103. We envision that our technique will increase the production of ion-irradiated nanoparticles, facilitating their use in various applications.
Subject Synthesis of Materials
Optical Properties of Materials
Physical Chemistry of Materials
DOI - identifier 10.1038/s41467-018-06789-8
Copyright notice © The Author(s) 2018
ISSN 2041-1723
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