Formation and Deposition of Stable Silver Nanoparticles Encapsulated in Solid Spheres
| Autor: | Daniel Crespo, Víctor Torres, Shin Hk, Soong-Hyuck Suh, Monica Popa, Jose M. Calderon-Moreno |
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| Přispěvatelé: | Universitat Politècnica de Catalunya. Departament de Física Aplicada, Universitat Politècnica de Catalunya. DMAG - Grup d'Aplicacions Multimèdia Distribuïdes, Universitat Politècnica de Catalunya. GCM - Grup de Caracterització de Materials |
| Rok vydání: | 2014 |
| Předmět: |
Silver
DISPERSIONS Materials science Biomedical Engineering SILICA SPHERES Bioengineering Nanotechnology ETHYLENE-GLYCOL Enginyeria dels materials [Àrees temàtiques de la UPC] Silver nanoparticle Colloid Ultraviolet visible spectroscopy Layered Coatings Rapid thermal processing Electron Microscopy General Materials Science Deposition (law) SONOCHEMICAL DEPOSITION Spin coating STABILITY Nanopartícules NANOSPHERES POLYOL PROCESS General Chemistry Condensed Matter Physics UV-Vis Spectroscopy REDUCTION Chemical engineering Colloidal gold GOLD NANOPARTICLES Nanoparticles Particle Silver Nanoparticles PARTICLE |
| Zdroj: | Recercat. Dipósit de la Recerca de Catalunya Universitat Jaume I UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) |
| ISSN: | 1533-4899 1533-4880 |
| Popis: | We prepared solid spheres, with diameters between 100 and 400 nm, encapsulating silver nanocrystallites (about 20 +/- 10 nm in diameter), by heating colloidal solutions of silver in methoxyethanol at 120 degrees C. Stable coatings were obtained using spin coating and rapid thermal processing on optical glass substrates. UV-Vis spectroscopy measurements demonstrated the remarkable stability against aggregation and particle growth, even after prolonged heating at 120 degrees C and exposed at direct sunlight, of the solutions, even using high concentrations of silver (1 M), and coatings of spheres encapsulating silver. |
| Databáze: | OpenAIRE |
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