Formation of Oriented Nanowires from Mixed Metal Oxides
In this study, we present a physical method for the fabrication of oriented nanowires composed of mixed metal oxides. Pulsed laser deposition carried out in the air under atmospheric pressure was used for the production of samples. Two sets of experiments were performed by applying nanosecond and pi...
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MDPI AG
2023-09-01
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| Online Access: | https://www.mdpi.com/1996-1944/16/19/6446 |
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| author | Anna Dikovska Genoveva Atanasova Rumen Nikov Georgi Avdeev Zara Cherkezova-Zheleva Daniela Paneva Nikolay Nedyalkov |
| author_facet | Anna Dikovska Genoveva Atanasova Rumen Nikov Georgi Avdeev Zara Cherkezova-Zheleva Daniela Paneva Nikolay Nedyalkov |
| author_sort | Anna Dikovska |
| collection | DOAJ |
| description | In this study, we present a physical method for the fabrication of oriented nanowires composed of mixed metal oxides. Pulsed laser deposition carried out in the air under atmospheric pressure was used for the production of samples. Two sets of experiments were performed by applying nanosecond and picosecond laser ablation, respectively. The depositions were performed using the laser ablation of mixed targets from iron oxide and zinc oxide as the initial materials in different ratios. The experiments were carried out in a magnetic field, which allowed us to control the morphology of nanostructures. The structure, microstructure, morphology, and composition of the structures obtained were studied in relation to the sample composition and laser ablation regime applied. The morphological analysis revealed that the structure of the samples consisted mainly of nanowire-like features reaching tens of micrometers in length. These nanowires were composed of nanoparticles and oriented predominantly in parallel to magnetic field lines. Nanoparticles produced using <i>ps</i> ablation were, on average, smaller than those obtained by <i>ns</i> ablation of the same target. Using ablation with <i>ps</i> laser pulses, we were able to produce new composite materials or materials containing unstable phases. |
| first_indexed | 2024-03-10T21:40:48Z |
| format | Article |
| id | doaj.art-71b41e94a95b4976999eb7eb7c2f062d |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T21:40:48Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-71b41e94a95b4976999eb7eb7c2f062d2023-11-19T14:39:59ZengMDPI AGMaterials1996-19442023-09-011619644610.3390/ma16196446Formation of Oriented Nanowires from Mixed Metal OxidesAnna Dikovska0Genoveva Atanasova1Rumen Nikov2Georgi Avdeev3Zara Cherkezova-Zheleva4Daniela Paneva5Nikolay Nedyalkov6Institute of Electronics, Bulgarian Academy of Sciences, 72 Tsarigradsko Chaussee, 1784 Sofia, BulgariaInstitute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 11, 1113 Sofia, BulgariaInstitute of Electronics, Bulgarian Academy of Sciences, 72 Tsarigradsko Chaussee, 1784 Sofia, BulgariaRostislaw Kaischew Institute of Physical Chemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl.11, 1113 Sofia, BulgariaInstitute of Catalysis, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Block 11, 1113 Sofia, BulgariaInstitute of Catalysis, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Block 11, 1113 Sofia, BulgariaInstitute of Electronics, Bulgarian Academy of Sciences, 72 Tsarigradsko Chaussee, 1784 Sofia, BulgariaIn this study, we present a physical method for the fabrication of oriented nanowires composed of mixed metal oxides. Pulsed laser deposition carried out in the air under atmospheric pressure was used for the production of samples. Two sets of experiments were performed by applying nanosecond and picosecond laser ablation, respectively. The depositions were performed using the laser ablation of mixed targets from iron oxide and zinc oxide as the initial materials in different ratios. The experiments were carried out in a magnetic field, which allowed us to control the morphology of nanostructures. The structure, microstructure, morphology, and composition of the structures obtained were studied in relation to the sample composition and laser ablation regime applied. The morphological analysis revealed that the structure of the samples consisted mainly of nanowire-like features reaching tens of micrometers in length. These nanowires were composed of nanoparticles and oriented predominantly in parallel to magnetic field lines. Nanoparticles produced using <i>ps</i> ablation were, on average, smaller than those obtained by <i>ns</i> ablation of the same target. Using ablation with <i>ps</i> laser pulses, we were able to produce new composite materials or materials containing unstable phases.https://www.mdpi.com/1996-1944/16/19/6446PLD in open air<i>ns</i> ablation<i>ps</i> ablationmetal oxide composites |
| spellingShingle | Anna Dikovska Genoveva Atanasova Rumen Nikov Georgi Avdeev Zara Cherkezova-Zheleva Daniela Paneva Nikolay Nedyalkov Formation of Oriented Nanowires from Mixed Metal Oxides Materials PLD in open air <i>ns</i> ablation <i>ps</i> ablation metal oxide composites |
| title | Formation of Oriented Nanowires from Mixed Metal Oxides |
| title_full | Formation of Oriented Nanowires from Mixed Metal Oxides |
| title_fullStr | Formation of Oriented Nanowires from Mixed Metal Oxides |
| title_full_unstemmed | Formation of Oriented Nanowires from Mixed Metal Oxides |
| title_short | Formation of Oriented Nanowires from Mixed Metal Oxides |
| title_sort | formation of oriented nanowires from mixed metal oxides |
| topic | PLD in open air <i>ns</i> ablation <i>ps</i> ablation metal oxide composites |
| url | https://www.mdpi.com/1996-1944/16/19/6446 |
| work_keys_str_mv | AT annadikovska formationoforientednanowiresfrommixedmetaloxides AT genovevaatanasova formationoforientednanowiresfrommixedmetaloxides AT rumennikov formationoforientednanowiresfrommixedmetaloxides AT georgiavdeev formationoforientednanowiresfrommixedmetaloxides AT zaracherkezovazheleva formationoforientednanowiresfrommixedmetaloxides AT danielapaneva formationoforientednanowiresfrommixedmetaloxides AT nikolaynedyalkov formationoforientednanowiresfrommixedmetaloxides |