Journal ArticleDOI
Mechanism of pulse laser interaction with colloidal nanoparticles
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TLDR
In this paper, the particle heating- melting-evaporation model is applied to the interaction mechanism of the laser beam with nanoparticles to control the laser processing of different nano-objects.Abstract:
The laser is a very powerful and very useful instru- ment in modern nanoscience and nanotechnology. The knowl- edge of the interaction mechanism of the laser beam with nanoparticles is needed to control the laser processing of dif- ferent nano-objects. It was shown that the particle heating- melting-evaporation model can be successfully applied for many phenomena arising when colloidal nanoparticle interact with pulsed laser beams. The general approach of this model is discussed in detail. The two main components of the model, light absorption by particles, and the thermodynamics of phase transitions in particulate material are considered. Special atten- tion is devoted to the correct estimation of the possible heat losses. The way in which the phase diagrams, where the differ- ent phase conditions of particle material are presented in laser fluence−particle diameter coordinates, were produced is demonstrated. It is shown how this model can be applied for understanding the mechanism of such complicated processes as particle-size reduction and submicrometer spherical particle growth, as well as other processes that occur when colloidal particles are irradiated by a pulsed laser.read more
Citations
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Journal ArticleDOI
Laser Synthesis and Processing of Colloids: Fundamentals and Applications
TL;DR: Unscreened surface charge of LSPC-synthesized colloids is the key to achieving colloidal stability and high affinity to biomolecules as well as support materials, thereby enabling the fabrication of bioconjugates and heterogeneous catalysts.
Journal ArticleDOI
External field-assisted laser ablation in liquid: An efficient strategy for nanocrystal synthesis and nanostructure assembly
TL;DR: Laser ablation in liquid (LAL) has received considerable attention over the last decade, and is gradually becoming an irreplaceable technique to synthesize nanocrystals and fabricate functional nanostructures because it can offer effective solutions to some challenges in the field of nanotechnology as discussed by the authors.
Journal ArticleDOI
Reshaping, Fragmentation, and Assembly of Gold Nanoparticles Assisted by Pulse Lasers.
TL;DR: The potential of pulse lasers to provide new fundamental insights into the electron dynamics involved in the interaction of light with the free conduction electrons of Au NPs, that is, localized surface plasmon resonances (LSPRs).
Journal ArticleDOI
Room-Temperature Laser Synthesis in Liquid of Oxide, Metal-Oxide Core-Shells, and Doped Oxide Nanoparticles
Vincenzo Amendola,David Amans,Yoshie Ishikawa,Naoto Koshizaki,Salvatore Scirè,Giuseppe Compagnini,Sven Reichenberger,Stephan Barcikowski +7 more
TL;DR: A review of established laser‐based methodologies of oxide nanoparticles which include pure oxidic phases, as well as unconventional structures like defective or doped oxides, non‐equilibrium compounds, metal‐oxide core–shells and other anisotropic morphologies is presented.
Journal ArticleDOI
Current state of laser synthesis of metal and alloy nanoparticles as ligand-free reference materials for nano-toxicological assays.
Christoph Rehbock,Jurij Jakobi,Lisa Gamrad,Selina Beatrice van der Meer,Daniela Tiedemann,Ulrike Taylor,Wilfried A. Kues,Detlef Rath,Stephan Barcikowski +8 more
TL;DR: Ag+ ion release is identified as the most probable mechanism of toxicity when recent toxicological studies with gametes, mammalian cells and bacteria are considered and the model AuAg was used to systematically evaluate composition related toxicological effects of alloy nanoparticles.
References
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Book
Absorption and Scattering of Light by Small Particles
TL;DR: In this paper, a Potpourri of Particles is used to describe surface modes in small Particles and the Angular Dependence of Scattering is shown to be a function of the size of the particles.
Book
Optical Properties of Metal Clusters
U. Kreibig,Michael Vollmer +1 more
TL;DR: In this paper, the authors present a survey of optical spectra of Elemental Metal Clusters and Chain Aggregates and discuss experimental results and experimental methods for metal clustering experiments.
Journal ArticleDOI
Size effect on the melting temperature of gold particles
Philippe A. Buffat,JP Borel +1 more
TL;DR: In this article, the melting points of small gold particles have been measured using a scanning electron-diffraction technique and the experimental results are quantitatively in good agreement with two phenomenological models.