Lecturer: Dr. Barbara Malič, Jožef Stefan Institute and Jožef Stefan International Postgraduate School, Ljubljana, Slovenia
Date: May 26-30, 2008
Time: 10.00 -
The course focuses on synthesis of inorganic nanomaterials in thin-film and powder form using chemical routes, on specific properties and methods of characterization of such materials.
General introduction. Nanomaterials. Surface/volume ratio. Top-down and bottom-up approaches. Challenges. Chemical methods of synthesis of thin films. General considerations. Metal-Organic Chemical Vapor Deposition (MOCVD): basics, precursors.
Chemical Solution Deposition (CSD). Introduction. Ferroelectric thin films. Solution synthesis routes (alkoxide sol-gel, MOD, organic/aqueous systems). Thin-film deposition methods. ‘Gel’ film. Heat treatment. Crystallization, microstructure evolution and orientation. Trends.
Synthesis of powders 1 (Chemical, physico/chemical and physical methods). Introduction. Solid-state vs. solution synthesis. General about solution synthesis. Coprecipitation. Colloidal routes: particulate sol-gel, alkoxide-based (polymeric) sol-gel. Syntheses involving organic polymerization. Emulsion synthesis.
Synthesis of powders 2 Hydrothermal synthesis. Syntheses of particles in vapor and solid phase.. Cryochemical synthesis (freeze drying). Sonochemical synthesis. Particles from mechanical attrition, mechanochemical synthesis. Combustion synthesis.
Agglomeration of powders and approaches to avoid it. Zeta potential. Electrostatic, steric and electrosteric stabilization of powders. Characterization. Morphology. Structure and composition . Physical properties. Summary.
Contact person: Marina Tyunina, Microelectronics and Materials Physics Laboratories, EMPART Group of Infotech (marina.tyunina(at)ee.oulu.fi)