2023
Experimental Setup for Laser Ablation Synthesis of Nanoparticles
KREMPL, Ivo, Karel NOVOTNÝ, Lukáš PEČINKA, Petr VAŇHARA, Josef HAVEL et. al.Základní údaje
Originální název
Experimental Setup for Laser Ablation Synthesis of Nanoparticles
Název česky
Experimentální sestava pro laserovou ablační syntézu nanočástic
Název anglicky
Experimental Setup for Laser Ablation Synthesis of Nanoparticles
Autoři
Vydání
Nanocon 2023, 2023
Další údaje
Typ výsledku
Konferenční abstrakt
Utajení
není předmětem státního či obchodního tajemství
Klíčová slova česky
Laserová ablace; tellur; laserová ablační syntéza
Klíčová slova anglicky
Laser ablation; tellurium; laser ablation synthesis
Změněno: 3. 6. 2024 09:54, Mgr. Ivo Krempl
V originále
The increasing use of nanoparticles (NPs) requires the development of a new method for their preparation. One of these options is to prepare NPs by laser ablation synthesis (LAS). LAS is based on the ablation of the target, which is placed in different environments, either in liquid or ambient gas. The most common laser for these syntheses is neodymium-doped yttrium aluminum garnet (Nd:YAG). LAS synthesis in a liquid environment is usually performed in organic solvents (e.g. ethanol or acetone). The setup was constructed to respect the maximum use of commercially available components and flexibility. The main issue was developing a setup enabling synthesis in gas or liquid environments with lasers operating at different wavelengths. In the case of LAS in liquid, a preparation is provided at 1064 nm, 10 Hz. On the other hand, the synthesis in an ambient gas environment (helium or argon) can be provided at 266 nm, 10 Hz. This wavelength cannot be used for LAS in liquid due to the absorption by liquid. This preparation is placed in the ablation chamber and then trapped in an organic solvent (e.g. acetone). The reason for this trapping is for easier manipulation and to prevent the release of toxic NPs into the atmosphere. The main issue for developing a preparation method is the preparation of fresh NPs due to their rapid aggregation.
Anglicky
The increasing use of nanoparticles (NPs) requires the development of a new method for their preparation. One of these options is to prepare NPs by laser ablation synthesis (LAS). LAS is based on the ablation of the target, which is placed in different environments, either in liquid or ambient gas. The most common laser for these syntheses is neodymium-doped yttrium aluminum garnet (Nd:YAG). LAS synthesis in a liquid environment is usually performed in organic solvents (e.g. ethanol or acetone). The setup was constructed to respect the maximum use of commercially available components and flexibility. The main issue was developing a setup enabling synthesis in gas or liquid environments with lasers operating at different wavelengths. In the case of LAS in liquid, a preparation is provided at 1064 nm, 10 Hz. On the other hand, the synthesis in an ambient gas environment (helium or argon) can be provided at 266 nm, 10 Hz. This wavelength cannot be used for LAS in liquid due to the absorption by liquid. This preparation is placed in the ablation chamber and then trapped in an organic solvent (e.g. acetone). The reason for this trapping is for easier manipulation and to prevent the release of toxic NPs into the atmosphere. The main issue for developing a preparation method is the preparation of fresh NPs due to their rapid aggregation.
Návaznosti
| GA22-07635S, projekt VaV |
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| MUNI/A/1298/2022, interní kód MU |
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| MUNI/A/1301/2022, interní kód MU |
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