Physical synthesis of nanoparticles: a bottom-up approach
Introduzione al Corso
The purpose of the course is to give a survey of the many techniques of physical synthesis and analysis of nanoparticles (NPs).The course is structured as follows:
- Introduction to the nanoparticles and their applications. Definition of nanoparticles. Importance of nanoparticles in nanotechnology. Definition of bottom-up and top-down synthesis. Application of NPs in medicine and diagnostics, catalysis and photovoltaic.
- Properties of Nanoparticles. Morphology and structure properties. Shell structure and magic numbers. Multitwinning. Electronic structure. Quantum size effects. Optical properties. Mie’s theory of optical absorption of nanoparticles. Surface plasmoni resonances. Magnetic properties. Superparamagnetism.
- Physical synthesis of nanoparticles. Ball-milling. Gas aggregation. Seeded supersonic beam. Laser evaporation. Pulsed arc, pulsed microplasma. Evaporation on substrate and self aggregation.
- Analysis of nanoparticles. Mass spectroscopy and filtering. Electron microscopy: TEM, STEM, SEM. AFM. X-ray photoelectron spectroscopy. Optical reflectivity. Magnetometry: SQUID, VSM, AGFM. In-flight analysis: electron diffraction, photoelectron spectroscopy, magnetic beam deflection.
- Experiments on nanoparticles. Examples of experiments on selected assemblies of nanoparticles. This part will be followed by a video tutorial in a laboratory.
Scienze
Ore di Formazione20
LivelloAvanzato
Modalità CorsoTutoraggio
English
Durata5 Settimane
TipologiaOnline
Stato del CorsoAuto apprendimento
Agenda del Corso
Avvio Iscrizioni
Apertura Corso
Inizio Tutoraggio
Fine Tutoraggio
Autoapprendimento
Chiusura Corso
Risultati Attesi
After the course, the students will have some essential knowledge of:- the physical properties of NPs: structure, morphology, electronic properties, magnetic properties.
- the techniques of synthesis of NPs;
- the methods of analysis of NPs: microscopy, spectroscopy, magnetometry.
Pre-requisiti
The course is intended for M. Sci. and Ph. D. students in Physics, Chemistry, Material Science and Material Engineering. The students will have prior knowledge of basic classical physics, principle of quantum mechanics and of solid state physics.Libri di testo e letture consigliate
- C. Binns, Nanoclusters, deposited on Surfaces, Surface Science Reports 44(1), 2001.
- R.L. Johnston, & J.P. Wilcoxon (Eds.), Metal Nanoparticles and Nanoalloys, Series Frontiers in Nanoscience, Vol.3, Elsevier 2012.
- U. Kreibig, M. Vollmer, Optical properties of Metal Clusters, Series Materials Science 25, Springer 1995.
- G. Schmid G. (Ed.), Nanoparticles: From Theory to Application, Weinheim(FRG), Wiley-VCH Verlag GmbH & Co. KGaA, 2004.
Many other references are suggested in the slide presentation for specific subjects.
