Nanoparticle Synthesis and Modification via Ion Beam Techniques

Ion beam methods have emerged as versatile tools for the controlled fabrication and alteration of nanoparticles within diverse host matrices. By directing charged particles—ranging from light ions to swift heavy ions—into solid, glassy or polymer substrates, researchers can trigger energy deposition through electronic and nuclear stopping processes. The resulting thermal spikes and collision cascades drive nucleation, growth, shape deformation and phase transformations of embedded particles without the need for chemical precursors. This enables precise tuning of size, aspect ratio and crystallinity of metallic, oxide and polymeric nanoparticles. Ion beam shaping has produced elongated rods, prolate spheroids and anisotropic shells of noble metals (Ag, Au, Ni) and semiconductor compounds within silica, alumina and garnet hosts. Such architectures exhibit tailored optical resonances, magnetic anisotropies and nonlinear responses. Recent technological strides include masked implantation, highly focused beams and high-flux cluster sources, which afford nanometre-scale positioning and three-dimensional control. These capabilities underpin advances in photonic waveguides, magneto-optical devices, plasmonic sensors and energy-conversion platforms, demonstrating the global significance of ion beam approaches for bespoke nanomaterial engineering.

Research from Nature Portfolio

Recent studies have elucidated the kinetics of nanoparticle elongation under ion irradiation. Investigations into silver nanoparticles embedded in silica have provided unprecedented in situ optical measurements and molecular dynamics simulations to unravel the competition between single-ion deformation, Ostwald ripening and dissolution during shape evolution. Further work has demonstrated that fullerene ion beams at low MeV energies can elongate metal nanoparticles with efficiency comparable to swift heavy ions at hundreds of MeV, revealing novel sputtering pathways and track formation phenomena. Historical research has also showcased the fabrication of anisotropic gold nanoparticles via xenon heavy-ion shaping, coupled with nonlinear optical microscopy to image three-dimensional orientation at single-particle resolution.

Nanoparticle Synthesis and Modification via Ion Beam Techniques publication trend

The graph below shows the total number of articles in nanoparticle synthesis and modification via ion beam techniques across all publications each year (not limited to Nature Index journals).

Technical terms

Ion beam irradiation: Exposure of materials to a directed stream of ions to induce structural and compositional changes.

Swift heavy ions (SHI): High-energy ions (typically >10 MeV per nucleon) that deposit energy predominantly via electronic stopping.

Ion implantation: Introduction of ions into a substrate to modify composition or create embedded nanoparticles at controlled depths.

Localized surface plasmon resonance (LSPR): Collective oscillation of conduction electrons at a nanoparticle's surface when excited by light at resonant frequencies.

Thermal spike: Brief, highly localised temperature rise in a material following ion energy deposition, driving diffusion and phase transformation.

References

1. Ultrafast Laser Manipulation of In‐Lattice Plasmonic Nanoparticles. Advanced Science (2024).
2. Elongation and plasmonic activity of embedded metal nanoparticles following heavy ion irradiation. RSC Advances (2023).
3. Understanding the ion-induced elongation of silver nanoparticles embedded in silica. Scientific Reports (2017).
4. C60 ions of 1 MeV are slow but elongate nanoparticles like swift heavy ions of hundreds MeV. Scientific Reports (2019).
5. Fabrication of Ion-Shaped Anisotropic Nanoparticles and their Orientational Imaging by Second-Harmonic Generation Microscopy. Scientific Reports (2016).
6. Ion beam-induced shaping of Ni nanoparticles embedded in a silica matrix: from spherical to prolate shape. Discover Nano (2011).
7. From ion-hammering to ion-shaping: an historical overview. Journal of Physics Conference Series (2015).
8. Nanoparticle containing channel waveguides produced by a multi-energy masked ion-implantation process. Optics Express (2015).
9. Shape Deformation in Ion Beam Irradiated Colloidal Monolayers: An AFM Investigation. Nanomaterials (2020).