scholarly journals Generation of silver nanoparticles with controlled size and spatial distribution by pulsed laser irradiation of silver ion-doped glass

2014 ◽  
Vol 22 (5) ◽  
pp. 5076 ◽  
Author(s):  
Stefan Wackerow ◽  
Amin Abdolvand
Keyword(s):  
Silver Nanoparticles ◽  
Spatial Distribution ◽  
Laser Irradiation ◽  
Pulsed Laser ◽  
Silver Ion ◽  
Doped Glass ◽  
Pulsed Laser Irradiation

Two- and Three-Dimensional Photonic Crystals Produced by Pulsed Laser Irradiation in Silver-Doped Glass

2004 ◽  
Vol 99-100 ◽  
pp. 65-72
Author(s):  
Yuri S. Kaganovsky ◽  
I. Antonov ◽  
M. Rosenbluh ◽  
J. Ihlemann ◽  
A.A. Lipovskii
Keyword(s):  
Photonic Crystals ◽  
Laser Irradiation ◽  
Uv Irradiation ◽  
Elevated Temperatures ◽  
Pulsed Laser ◽  
Silver Nanoclusters ◽  
Direct Laser ◽  
Doped Glass ◽  
2D And 3D ◽  
Pulsed Laser Irradiation

Two types of silver-doped glass were used for direct laser recording of 2D and 3D photonic crystals. The first contained a diffusion layer (20 microns thick) with embedded silver nanoclusters of 20-nm average radius. 2D and 3D photonic crystals of submicron lattice parameters were fabricated by nanosecond pulsed laser irradiation (l, = 355 nm) using four or five coherent intersecting beams. Under irradiation the clusters absorbing light energy are heated to high temperatures and become mobile due to the formation of liquid shells around them. Adjacent clusters move towards each other and towards the irradiated surface under local temperature gradients, form agglomerates and merge in periodically located "spots" of high light intensity in the interference field. The second type of glass, photosensitive to UV irradiation, contained in the bulk Ag+ and Ce3+ ions. Under UV irradiation excited electrons passed from Ce3+ to Ag+. The Ag atoms became neutral and under subsequent heat treatment of the glass at elevated temperatures have a tendency to form nanoclusters, thus “developing” the UV recorded patterns. Using nanosecond pulsed irradiation of 308 nm we have recorded 3D photonic crystals in the bulk of such glass.

Influence of pulsed laser irradiation on precipitation of silver nanoparticles in glass

2008 ◽  
Vol 311 (1) ◽  
pp. 172-184 ◽  
Author(s):  
Jean-Philippe Blondeau ◽  
Stéphane Pellerin ◽  
Vanessa Vial ◽  
Krzysztof Dzierże¸ga ◽  
Nadia Pellerin ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Laser Irradiation ◽  
Pulsed Laser ◽  
Pulsed Laser Irradiation

Photofusion and Disaggregation of Silver Nanoparticles Suspended in Ethanol by Laser Irradiation

2017 ◽  
Vol 14 (1) ◽  
pp. 50-53 ◽  
Author(s):  
Gabriel Ortega-Mendoza ◽  
Oscar Goiz ◽  
Alfonso Padilla-Vivanco ◽  
Carina Toxqui-Quitl ◽  
Placido Zaca-Moran ◽  
...  
Keyword(s):  
Particle Size ◽  
Silver Nanoparticles ◽  
Particle Size Distribution ◽  
Optical Fiber ◽  
Size Distribution ◽  
Laser Irradiation ◽  
Absorption Spectra ◽  
Colloidal Solution ◽  
Pulsed Laser ◽  
Pulsed Laser Irradiation

Background: Metal nanoparticles have been widely investigated due to their unique optical, mechanical, and chemical properties compared with those of the same bulk material. These properties can be tuned by controlling their size or shape, in this sense, several nanomaterials have been obtained by means of both chemical and physical methods. For instance, silver nanoparticles have been obtained in liquid media by using laser ablation or chemical reduction techniques. Another way to obtain a colloidal silver nanoparticles is through the well-known pulsed laser irradiation method which can produce a stable colloidal solution in a few minutes of irradiation and without stabilizing molecules or ligands. Methods: Silver nanopowder suspended in ethanol was irradiated with a pulsed laser at 532 nm via optical fiber. Previously, the fiber was prepared by cleaving and removing its coating and then placed in the middle of a cell. The pulse width was 15 ns and the pulse repetition frequency was 10 kHz. Scanning and transmission electron microscopes were used to observe the silver nanoparticles before and after laser irradiation, respectively. The samples were analyzed by means of UV-Vis spectrophotometer to observe the absorption spectra. Results: The absorption spectra show that particle size distribution increases according to the irradiation time. The colloidal solution showed a color change (from gray to yellow) after having irradiated it for 5 minutes. From TEM images, it can be observed that silver nanopowder was transformed to semispherical particles with diameters smaller than 1μm, however, due to the wide particle size distribution the colloidal solution was centrifuged for 30 min to separate the nanoparticles. Conclusion: The pulsed laser irradiation method via optical fiber was successfully used to obtain a stable yellow colloidal solution. Photomelting, photofusion, and photofragmentation are the responsible phenomena for the change in morphology and size of the silver nanopowder.

Two- and three-dimensional periodic structures produced by nano-pulsed laser irradiation in Ag-doped glass

2003 ◽  
Author(s):  
Yuri Kaganovskii ◽  
Irena Antonov ◽  
David Ianetz ◽  
Michael Rosenbluh ◽  
Andrey A. Lipovskii
Keyword(s):  
Laser Irradiation ◽  
Periodic Structures ◽  
Three Dimensional ◽  
Pulsed Laser ◽  
Doped Glass ◽  
Pulsed Laser Irradiation

Modification of structural and transport properties in epitaxial YBa2CU3Ox films by pulsed laser irradiation

1993 ◽  
Vol 3 (12) ◽  
pp. 2173-2188
Author(s):  
N. G. Chechenin ◽  
A. V. Chernysh ◽  
V. V. Korneev ◽  
E. V. Monakhov ◽  
B. V. Seleznev
Keyword(s):  
Transport Properties ◽  
Laser Irradiation ◽  
Pulsed Laser ◽  
Pulsed Laser Irradiation

PULSED LASER IRRADIATION OF NICKEL THIN FILMS ON SILICON

1983 ◽  
Vol 44 (C5) ◽  
pp. C5-449-C5-454 ◽  
Author(s):  
P. Baeri ◽  
M. G. Grimaldi ◽  
E. Rimini ◽  
G. Celotti
Keyword(s):  
Thin Films ◽  
Laser Irradiation ◽  
Pulsed Laser ◽  
Nickel Thin Films ◽  
Pulsed Laser Irradiation

FUNDAMENTALS OF PULSED LASER IRRADIATION OF SILICON

1983 ◽  
Vol 44 (C5) ◽  
pp. C5-23-C5-36 ◽  
Author(s):  
H. Kurz ◽  
L. A. Lompré ◽  
J. M. Liu
Keyword(s):  
Laser Irradiation ◽  
Pulsed Laser ◽  
Pulsed Laser Irradiation
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