Fabrication of Hafnium-based Nanoparticles and Nanostructures using Picosecond Laser Ablation

Abhishek Das; Mangababu Akkanaboina; Jagannath Rathod; R Sai Prasad Goud; Kanaka Ravi Kumar; Raghu C Reddy; R Ratheesh; Katia Vutova; S.V.S. Nageswara Rao; Venugopal Rao Soma

doi:10.3762/bxiv.2024.55.v1

Fabrication of Hafnium-based Nanoparticles and Nanostructures using Picosecond Laser Ablation

Abhishek Das ,
Mangababu Akkanaboina ,
Jagannath Rathod ,
R Sai Prasad Goud ,
Kanaka Ravi Kumar ,
Raghu C Reddy ,
R Ratheesh ,
Katia Vutova ,
S.V.S. Nageswara Rao and
Venugopal Rao Soma

Submitting author affiliation:

University of Hyderabad, Hyderabad, India

Beilstein Arch. 2024, 202455. https://doi.org/10.3762/bxiv.2024.55.v1

Published 02 Aug 2024

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SUBJECT AREAS

Show All Preprints Nanotechnology Organic chemistry Bioorganic chemistry / chemical biology Catalysis Chemical methods and reactions Flow and process chemistry Green and sustainable chemistry Materials chemistry Medicinal and pharmaceutical chemistry Nano- and molecular-scale electronics Nano-biomaterials and bioscience Nanomagnetics Nanomaterials, thin films and nanointerfaces Nanomedicine Nanometrology and nanomechanics Nano-optics Nanopatterning, self-assembly and nanofabrication Nanostructures for energy and sensing applications Natural products chemistry Organo main group chemistry Other nanotechnology (unclassified) Other organic chemistry (unclassified) Photochemistry and photovoltaics Physical organic chemistry Supramolecular chemistry

Abstract

This work presents a unique and straightforward method to synthesize Hafnium Oxide (HfO₂) and Hafnium Carbide (HfC) nanoparticles (NPs) and fabricate Hafnium (Hf) nanostructures (NSs) on Hf metal surfaces. An ultrafast (picosecond) laser ablation of the Hf metal target was performed in three different liquid media (deionized water (DW), toluene, and anisole) to fabricate HfO₂ and HfC NPs along with Hf NSs. Spherical HfO₂ NPs and nanofibers were formed when Hf was ablated in DW. Hf ablated in solvents like toluene and anisole showed the formation of core-shell NPs of HfC with graphitic shell. All the NPs showed novel optical reflectance properties. The reflectance measurements revealed that the fabricated NPs had a very high and broad optical absorption throughout the UV-Visible-NIR range. The NPs synthesized in toluene especially depicted the best absorption. On the other hand, the successful fabrication of Hf NSs with the formation of picosecond laser-induced periodic surface structures (LIPSS) with low spatial frequency (LSFL) and high spatial frequency (HSFL) orthogonal to each other was also demonstrated. The LSFL and HSFL both showed quasi-periodicity. This article presents a simple way to fabricate HfO₂ and HfC NPs and provides insight into their morphological and optical characteristics.

Keywords: Laser ablation in liquids, nanoparticles, nanofibers, nanostructures, hafnium

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When a peer-reviewed version of this preprint is available, this information will be updated in the information box above. If no peer-reviewed version is available, please cite this preprint using the following information:

Das, A.; Akkanaboina, M.; Rathod, J.; Sai Prasad Goud, R.; Ravi Kumar, K.; Reddy, R. C.; Ratheesh, R.; Vutova, K.; Nageswara Rao, S.; Soma, V. R. Beilstein Arch. 2024, 202455. doi:10.3762/bxiv.2024.55.v1

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© 2024 Das et al.; licensee Beilstein-Institut.
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