From multi-segmented to core/shell nanorods: morphology evolution in Fe-Au nanorods by tuning fabrication conditions.

Autor:	Khurshid H; Department of Applied Physics and Astronomy, University of Sharjah, United Arab Emirates.; Department of Medical Diagnostic Imaging, University of Sharjah, United Arab Emirates., Yoosuf R; Department of Applied Physics and Astronomy, University of Sharjah, United Arab Emirates., Zafar H; Department of Physics, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates., Attanayake SB; Department of Physics, University of South Florida, Tampa FL, United States of America., Azeem M; Department of Applied Physics and Astronomy, University of Sharjah, United Arab Emirates., Issa BA; Department of Medical Diagnostic Imaging, University of Sharjah, United Arab Emirates., Anjum DH; Department of Physics, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates., Srikanth H; Department of Physics, University of South Florida, Tampa FL, United States of America.
Jazyk:	angličtina
Zdroj:	Nanotechnology [Nanotechnology] 2023 Feb 20; Vol. 34 (18). Date of Electronic Publication: 2023 Feb 20.
DOI:	10.1088/1361-6528/acb715
Abstrakt:	Aiming to obtain hybrid magneto-plasmonic nanostructures, we have developed multisegmented and core/shell structured Fe-Au nanorods using template assisted electrochemical deposition. A facile method of tuning the growth pattern of multisegmented nanorods into core/shell structured is demonstrated. With a precise control of current density and deposition time, a brick-stacked wire like growth led to the formation of hollow nanotubes that could be further tuned to multilayered hollow nanotubes and core/shell structured nanorods. TEM imaging and STEM-EELS technique were used to explore the morphology, microstructure and the distribution of Au and Fe in the nanorods. The easy magnetization direction was found to be perpendicular to the nanorods' growth direction in the segmented nanorods. On the other hand, core/shell nanorods exhibited isotropic behavior. Our findings provide deeper insights into the fabrication of hybrid nanorods and the opportunity to tune the fabrication method to vary their morphology accordingly. Such studies will benefit design of hybrid nanorods with specific morphologies and physical properties and hence their integration into sensing, spintronics and other potential biomedical and technological applications. (© 2023 IOP Publishing Ltd.)
Databáze:	MEDLINE
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