Agglomeration in core-shell structure of CuAg nanoparticles synthesized by the laser ablation of Cu target in aqueous solutions
Само за регистроване кориснике
2015
Аутори
Petrović, SuzanaSalatić, Branislav
Milovanović, Dubravka S.
Lazović, Vladimir M.
Živković, Ljiljana
Trtica, Milan
Jelenković, Branislav
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Metallic copper Cu and bimetallic copper-silver CuAg nanoparticles (NPs) are generated by the ablation of copper bulk target in water and aqueous Ag colloidal solution, respectively. The experiments were performed using nanosecond Nd: YAG laser operating at 1064 nm. The generated NPs are characterized by UV-vis absorption spectroscopy, laser-induced breakdown spectroscopy, dynamic light scattering and scanning electron microscopy. The conducted investigations can be summarized as follows: (i) CuAg NPs colloidal solution possess the absorption in UV-vis spectral region, which can be attributed to the Cu-component; (ii) the primary bimetallic CuAg NPs have near uniform dimensions with diameter of about 15 nm, and as a rule, they are grouped into larger agglomerates without defined morphology; (iii) the obtained Cu NPs have mainly spherical form with average diameters up to 20 nm. Both types of NPs show a tendency towards the formation of large agglomerates with different morphology. Bime...tallic NPs show the plasmon resonance in the vicinity of 640 nm with a good coincidence with formation of the colloidal solution of pure Cu NPs. The results also demonstrate that the core-shell structure (Ag-rich core/Cu-rich shell) is important for the formation of the bimetallic NPs, also agreeing very well with theory.
Кључне речи:
bimetallic nanoparticles / laser ablation in liquids / core-shell structureИзвор:
Journal of Optics, 2015, 17, 2Финансирање / пројекти:
- Генерисање и карактеризација нанофотонских функционалних структура у биомедицини и информатици (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45016)
- European Community, COST Action [CM1104]
DOI: 10.1088/2040-8978/17/2/025402
ISSN: 2040-8978; 2040-8986
WoS: 000349101200013
Scopus: 2-s2.0-84922042346
Колекције
Институција/група
VinčaTY - JOUR AU - Petrović, Suzana AU - Salatić, Branislav AU - Milovanović, Dubravka S. AU - Lazović, Vladimir M. AU - Živković, Ljiljana AU - Trtica, Milan AU - Jelenković, Branislav PY - 2015 UR - https://vinar.vin.bg.ac.rs/handle/123456789/392 AB - Metallic copper Cu and bimetallic copper-silver CuAg nanoparticles (NPs) are generated by the ablation of copper bulk target in water and aqueous Ag colloidal solution, respectively. The experiments were performed using nanosecond Nd: YAG laser operating at 1064 nm. The generated NPs are characterized by UV-vis absorption spectroscopy, laser-induced breakdown spectroscopy, dynamic light scattering and scanning electron microscopy. The conducted investigations can be summarized as follows: (i) CuAg NPs colloidal solution possess the absorption in UV-vis spectral region, which can be attributed to the Cu-component; (ii) the primary bimetallic CuAg NPs have near uniform dimensions with diameter of about 15 nm, and as a rule, they are grouped into larger agglomerates without defined morphology; (iii) the obtained Cu NPs have mainly spherical form with average diameters up to 20 nm. Both types of NPs show a tendency towards the formation of large agglomerates with different morphology. Bimetallic NPs show the plasmon resonance in the vicinity of 640 nm with a good coincidence with formation of the colloidal solution of pure Cu NPs. The results also demonstrate that the core-shell structure (Ag-rich core/Cu-rich shell) is important for the formation of the bimetallic NPs, also agreeing very well with theory. T2 - Journal of Optics T1 - Agglomeration in core-shell structure of CuAg nanoparticles synthesized by the laser ablation of Cu target in aqueous solutions VL - 17 IS - 2 DO - 10.1088/2040-8978/17/2/025402 ER -
@article{ author = "Petrović, Suzana and Salatić, Branislav and Milovanović, Dubravka S. and Lazović, Vladimir M. and Živković, Ljiljana and Trtica, Milan and Jelenković, Branislav", year = "2015", abstract = "Metallic copper Cu and bimetallic copper-silver CuAg nanoparticles (NPs) are generated by the ablation of copper bulk target in water and aqueous Ag colloidal solution, respectively. The experiments were performed using nanosecond Nd: YAG laser operating at 1064 nm. The generated NPs are characterized by UV-vis absorption spectroscopy, laser-induced breakdown spectroscopy, dynamic light scattering and scanning electron microscopy. The conducted investigations can be summarized as follows: (i) CuAg NPs colloidal solution possess the absorption in UV-vis spectral region, which can be attributed to the Cu-component; (ii) the primary bimetallic CuAg NPs have near uniform dimensions with diameter of about 15 nm, and as a rule, they are grouped into larger agglomerates without defined morphology; (iii) the obtained Cu NPs have mainly spherical form with average diameters up to 20 nm. Both types of NPs show a tendency towards the formation of large agglomerates with different morphology. Bimetallic NPs show the plasmon resonance in the vicinity of 640 nm with a good coincidence with formation of the colloidal solution of pure Cu NPs. The results also demonstrate that the core-shell structure (Ag-rich core/Cu-rich shell) is important for the formation of the bimetallic NPs, also agreeing very well with theory.", journal = "Journal of Optics", title = "Agglomeration in core-shell structure of CuAg nanoparticles synthesized by the laser ablation of Cu target in aqueous solutions", volume = "17", number = "2", doi = "10.1088/2040-8978/17/2/025402" }
Petrović, S., Salatić, B., Milovanović, D. S., Lazović, V. M., Živković, L., Trtica, M.,& Jelenković, B.. (2015). Agglomeration in core-shell structure of CuAg nanoparticles synthesized by the laser ablation of Cu target in aqueous solutions. in Journal of Optics, 17(2). https://doi.org/10.1088/2040-8978/17/2/025402
Petrović S, Salatić B, Milovanović DS, Lazović VM, Živković L, Trtica M, Jelenković B. Agglomeration in core-shell structure of CuAg nanoparticles synthesized by the laser ablation of Cu target in aqueous solutions. in Journal of Optics. 2015;17(2). doi:10.1088/2040-8978/17/2/025402 .
Petrović, Suzana, Salatić, Branislav, Milovanović, Dubravka S., Lazović, Vladimir M., Živković, Ljiljana, Trtica, Milan, Jelenković, Branislav, "Agglomeration in core-shell structure of CuAg nanoparticles synthesized by the laser ablation of Cu target in aqueous solutions" in Journal of Optics, 17, no. 2 (2015), https://doi.org/10.1088/2040-8978/17/2/025402 . .