Fabrication of hafnium-based nanoparticles and nanostructures using picosecond laser ablation
This work presents a unique and straightforward method to synthesise hafnium oxide (HfO2) and hafnium carbide (HfC) nanoparticles (NPs) and to fabricate hafnium nanostructures (NSs) on a Hf surface. Ultrafast picosecond laser ablation of the Hf metal target was performed in three different liquid me...
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| Format: | Article |
| Language: | English |
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Beilstein-Institut
2024-12-01
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| Series: | Beilstein Journal of Nanotechnology |
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| Online Access: | https://doi.org/10.3762/bjnano.15.129 |
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| author | Abhishek Das Mangababu Akkanaboina Jagannath Rathod R. Sai Prasad Goud Kanaka Ravi Kumar Raghu C. Reddy Ratheesh Ravendran Katia Vutova S. V. S. Nageswara Rao Venugopal Rao Soma |
| author_facet | Abhishek Das Mangababu Akkanaboina Jagannath Rathod R. Sai Prasad Goud Kanaka Ravi Kumar Raghu C. Reddy Ratheesh Ravendran Katia Vutova S. V. S. Nageswara Rao Venugopal Rao Soma |
| author_sort | Abhishek Das |
| collection | DOAJ |
| description | This work presents a unique and straightforward method to synthesise hafnium oxide (HfO2) and hafnium carbide (HfC) nanoparticles (NPs) and to fabricate hafnium nanostructures (NSs) on a Hf surface. Ultrafast picosecond laser ablation of the Hf metal target was performed in three different liquid media, namely, deionised water (DW), toluene, and anisole, to fabricate HfO2 and HfC NPs along with Hf NSs. Spherical HfO2 NPs and nanofibres were formed when Hf was ablated in DW. Hf ablated in toluene and anisole demonstrated the formation of core–shell NPs of HfC with a graphitic shell. All NPs exhibited novel optical reflectance properties. Reflectance measurements revealed that the fabricated NPs had a very high and broad optical absorption throughout the UV–vis–NIR range. The NPs synthesised in toluene exhibited the best absorption. The successful fabrication of Hf NSs with the formation of 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 exhibited quasi-periodicity. This work presents a simple way to fabricate HfO2 and HfC NPs and provides insight into their morphological and optical characteristics paving way for their applications in future. |
| format | Article |
| id | doaj-art-1d057b383de34a2c96da50a7804e97e7 |
| institution | Kabale University |
| issn | 2190-4286 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Beilstein-Institut |
| record_format | Article |
| series | Beilstein Journal of Nanotechnology |
| spelling | doaj-art-1d057b383de34a2c96da50a7804e97e72025-01-06T12:27:48ZengBeilstein-InstitutBeilstein Journal of Nanotechnology2190-42862024-12-011511639165310.3762/bjnano.15.1292190-4286-15-129Fabrication of hafnium-based nanoparticles and nanostructures using picosecond laser ablationAbhishek Das0Mangababu Akkanaboina1Jagannath Rathod2R. Sai Prasad Goud3Kanaka Ravi Kumar4Raghu C. Reddy5Ratheesh Ravendran6Katia Vutova7S. V. S. Nageswara Rao8Venugopal Rao Soma9School of Physics, University of Hyderabad, Hyderabad 500046, Telangana, India Department of Physics, Banaras Hindu University, Varanasi 221005, Uttar Pradesh, India Advanced Centre of Research in High Energy Materials (ACRHEM), DRDO Industry Academia – Centre of Excellence (DIA-COE), University of Hyderabad, Hyderabad 500046, Telangana, India School of Physics, University of Hyderabad, Hyderabad 500046, Telangana, India School of Physics, University of Hyderabad, Hyderabad 500046, Telangana, India Centre for Materials for Electronics Technology (C-MET), IDA Phase III, Cherlapalli, HCL (P.O.), Hyderabad 500 051, Telangana, India Centre for Materials for Electronics Technology (C-MET), IDA Phase III, Cherlapalli, HCL (P.O.), Hyderabad 500 051, Telangana, India Institute of Electronics, Bulgarian Academy of Sciences, 72, Tzarigradsko Shosse, 1784, Sofia, Bulgaria School of Physics, University of Hyderabad, Hyderabad 500046, Telangana, India School of Physics, University of Hyderabad, Hyderabad 500046, Telangana, India This work presents a unique and straightforward method to synthesise hafnium oxide (HfO2) and hafnium carbide (HfC) nanoparticles (NPs) and to fabricate hafnium nanostructures (NSs) on a Hf surface. Ultrafast picosecond laser ablation of the Hf metal target was performed in three different liquid media, namely, deionised water (DW), toluene, and anisole, to fabricate HfO2 and HfC NPs along with Hf NSs. Spherical HfO2 NPs and nanofibres were formed when Hf was ablated in DW. Hf ablated in toluene and anisole demonstrated the formation of core–shell NPs of HfC with a graphitic shell. All NPs exhibited novel optical reflectance properties. Reflectance measurements revealed that the fabricated NPs had a very high and broad optical absorption throughout the UV–vis–NIR range. The NPs synthesised in toluene exhibited the best absorption. The successful fabrication of Hf NSs with the formation of 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 exhibited quasi-periodicity. This work presents a simple way to fabricate HfO2 and HfC NPs and provides insight into their morphological and optical characteristics paving way for their applications in future.https://doi.org/10.3762/bjnano.15.129hafniumlaser ablation in liquidsnanofibresnanoparticlesnanostructures |
| spellingShingle | Abhishek Das Mangababu Akkanaboina Jagannath Rathod R. Sai Prasad Goud Kanaka Ravi Kumar Raghu C. Reddy Ratheesh Ravendran Katia Vutova S. V. S. Nageswara Rao Venugopal Rao Soma Fabrication of hafnium-based nanoparticles and nanostructures using picosecond laser ablation Beilstein Journal of Nanotechnology hafnium laser ablation in liquids nanofibres nanoparticles nanostructures |
| title | Fabrication of hafnium-based nanoparticles and nanostructures using picosecond laser ablation |
| title_full | Fabrication of hafnium-based nanoparticles and nanostructures using picosecond laser ablation |
| title_fullStr | Fabrication of hafnium-based nanoparticles and nanostructures using picosecond laser ablation |
| title_full_unstemmed | Fabrication of hafnium-based nanoparticles and nanostructures using picosecond laser ablation |
| title_short | Fabrication of hafnium-based nanoparticles and nanostructures using picosecond laser ablation |
| title_sort | fabrication of hafnium based nanoparticles and nanostructures using picosecond laser ablation |
| topic | hafnium laser ablation in liquids nanofibres nanoparticles nanostructures |
| url | https://doi.org/10.3762/bjnano.15.129 |
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