Nanorod orientation control by swift heavy ion irradiation
Korkos, S., Jantunen, V., Arstila, K., Sajavaara, T., Leino, A., Nordlund, K., & Djurabekova, F. (2022). Nanorod orientation control by swift heavy ion irradiation. Applied Physics Letters, 120(17), Article 171602. https://doi.org/10.1063/5.0089028
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Applied Physics LettersAuthors
Date
2022Discipline
FysiikkaYdin- ja kiihdytinfysiikan huippuyksikköNanoscience CenterPhysicsCentre of Excellence in Nuclear and Accelerator Based PhysicsNanoscience CenterCopyright
© 2022 Author(s). Published under an exclusive license by AIP Publishing.
Highly energetic ions have been previously used to modify the shape of metal nanoparticles embedded in an insulating matrix. In this work, we demonstrate that under suitable conditions, energetic ions can be used not only for shape modification but also for manipulation of nanorod orientation. This observation is made by imaging the same nanorod before and after swift heavy ion irradiation using a transmission electron microscope. Atomistic simulations reveal a complex mechanism of nanorod re-orientation by an incremental change in its shape from a rod to a spheroid and further back into a rod aligned with the beam.
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https://converis.jyu.fi/converis/portal/detail/Publication/144271290
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Research Council of FinlandFunding program(s)
Academy Project, AoFAdditional information about funding
We gratefully acknowledge the Academy of Finland Novel Nanostructure Morphologies by Ion Beam Shaping (NANOIS) project (Project No. 309730) for financial support. V.J., A.L., and F.D. gratefully acknowledge IT Centre of Science CSC in Espoo, Finland for providing central processing unit resource grants.License
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