Size-Selected Ag Nanoparticles with Five-Fold Symmetry
Silver nanoparticles were synthesized using the inert gas aggregation technique. We found the optimal experimental conditions to synthesize nanoparticles at different sizes: 1.3 ± 0.2, 1.7 ± 0.3, 2.5 ± 0.4, 3.7 ± 0.4, 4.5 ± 0.9, and 5.5 ± 0.3 nm. We were able to investigate the dependence of the siz...
| Autores principales: | , , , |
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| Formato: | Artículo |
| Lenguaje: | inglés |
| Publicado: |
Springer
2009
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| Acceso en línea: | http://eprints.uanl.mx/15105/1/799.pdf |
| _version_ | 1824414260990574592 |
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| author | Gracia Pinilla, Miguel Ángel Ferrer, Domingo A. Mejía Rosales, Sergio Pérez Tijerina, Eduardo |
| author_facet | Gracia Pinilla, Miguel Ángel Ferrer, Domingo A. Mejía Rosales, Sergio Pérez Tijerina, Eduardo |
| author_sort | Gracia Pinilla, Miguel Ángel |
| collection | Repositorio Institucional |
| description | Silver nanoparticles were synthesized using the inert gas aggregation technique. We found the optimal experimental conditions to synthesize nanoparticles at different sizes: 1.3 ± 0.2, 1.7 ± 0.3, 2.5 ± 0.4, 3.7 ± 0.4, 4.5 ± 0.9, and 5.5 ± 0.3 nm. We were able to investigate the dependence of the size of the nanoparticles on the synthesis parameters. Our data suggest that the aggregation of clusters (dimers, trimer, etc.) into the active zone of the nanocluster source is the predominant physical mechanism for the formation of the nanoparticles. Our experiments were carried out in conditions that kept the density of nanoparticles low, and the formation of larges nanoparticles by coalescence processes was avoided. In order to preserve the structural and morphological properties, the impact energy of the clusters landing into the substrate was controlled, such that the acceleration energy of the nanoparticles was around 0.1 eV/atom, assuring a soft landing deposition. High-resolution transmission electron microscopy images showed that the nanoparticles were icosahedral in shape, preferentially oriented with a five-fold axis perpendicular to the substrate surface. Our results show that the synthesis by inert gas aggregation technique is a very promising alternative to produce metal nanoparticles when the control of both size and shape are critical for the development of practical applications. |
| format | Article |
| id | eprints-15105 |
| institution | UANL |
| language | English |
| publishDate | 2009 |
| publisher | Springer |
| record_format | eprints |
| spelling | eprints-151052020-10-01T18:15:30Z http://eprints.uanl.mx/15105/ Size-Selected Ag Nanoparticles with Five-Fold Symmetry Gracia Pinilla, Miguel Ángel Ferrer, Domingo A. Mejía Rosales, Sergio Pérez Tijerina, Eduardo Silver nanoparticles were synthesized using the inert gas aggregation technique. We found the optimal experimental conditions to synthesize nanoparticles at different sizes: 1.3 ± 0.2, 1.7 ± 0.3, 2.5 ± 0.4, 3.7 ± 0.4, 4.5 ± 0.9, and 5.5 ± 0.3 nm. We were able to investigate the dependence of the size of the nanoparticles on the synthesis parameters. Our data suggest that the aggregation of clusters (dimers, trimer, etc.) into the active zone of the nanocluster source is the predominant physical mechanism for the formation of the nanoparticles. Our experiments were carried out in conditions that kept the density of nanoparticles low, and the formation of larges nanoparticles by coalescence processes was avoided. In order to preserve the structural and morphological properties, the impact energy of the clusters landing into the substrate was controlled, such that the acceleration energy of the nanoparticles was around 0.1 eV/atom, assuring a soft landing deposition. High-resolution transmission electron microscopy images showed that the nanoparticles were icosahedral in shape, preferentially oriented with a five-fold axis perpendicular to the substrate surface. Our results show that the synthesis by inert gas aggregation technique is a very promising alternative to produce metal nanoparticles when the control of both size and shape are critical for the development of practical applications. Springer 2009 Article PeerReviewed text en cc_by_nc_nd http://eprints.uanl.mx/15105/1/799.pdf http://eprints.uanl.mx/15105/1.haspreviewThumbnailVersion/799.pdf Gracia Pinilla, Miguel Ángel y Ferrer, Domingo A. y Mejía Rosales, Sergio y Pérez Tijerina, Eduardo (2009) Size-Selected Ag Nanoparticles with Five-Fold Symmetry. Nanoscale research letters, 4 (8). pp. 896-902. ISSN 1931-7573 http://doi.org/10.1007/s11671-009-9328-4 doi:10.1007/s11671-009-9328-4 |
| spellingShingle | Gracia Pinilla, Miguel Ángel Ferrer, Domingo A. Mejía Rosales, Sergio Pérez Tijerina, Eduardo Size-Selected Ag Nanoparticles with Five-Fold Symmetry |
| thumbnail | https://rediab.uanl.mx/themes/sandal5/images/online.png |
| title | Size-Selected Ag Nanoparticles with Five-Fold Symmetry |
| title_full | Size-Selected Ag Nanoparticles with Five-Fold Symmetry |
| title_fullStr | Size-Selected Ag Nanoparticles with Five-Fold Symmetry |
| title_full_unstemmed | Size-Selected Ag Nanoparticles with Five-Fold Symmetry |
| title_short | Size-Selected Ag Nanoparticles with Five-Fold Symmetry |
| title_sort | size selected ag nanoparticles with five fold symmetry |
| url | http://eprints.uanl.mx/15105/1/799.pdf |
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