CODICE 104069 ANNO ACCADEMICO 2023/2024 CFU 3 cfu anno 2 SCIENZA E TECNOLOGIA DEI MATERIALI 11430 (LM SC.MAT.) - GENOVA 3 cfu anno 1 SCIENZA E TECNOLOGIA DEI MATERIALI 11430 (LM SC.MAT.) - GENOVA SETTORE SCIENTIFICO DISCIPLINARE CHIM/03 LINGUA Inglese SEDE GENOVA PERIODO 2° Semestre MATERIALE DIDATTICO AULAWEB PRESENTAZIONE Introduction to processes for the preparation and modification of functional inorganic materials. Properties of the synthesized materials and their applications. OBIETTIVI E CONTENUTI OBIETTIVI FORMATIVI Introduction to the various processes for the preparation and modification of inorganic materials. Properties of the synthesized materials and applications. OBIETTIVI FORMATIVI (DETTAGLIO) E RISULTATI DI APPRENDIMENTO This course aims at understanding the big role of functional materials in modern technologies and the working methodology in material research through the study of different classes of materials. At the end of the course, students are expected to understand: - Functionalities of materials used as sensors and actuators. - Working principles of different classes of functional materials. - Main techniques of synthesis of these materials. - Chemical and physical parameters allowing to improve devices performances PREREQUISITI Fundamentals of chemistry and physics MODALITA' DIDATTICHE Traditional lectures from the teacher and, when possible, seminars given by experts at international level. Students can use material uploaded in Aulaweb. Partecipation to the lecture is strongly recommended. PROGRAMMA/CONTENUTO This course will introduce the processes for the preparation of functional inorganic materials. Three different classes of materials will be studied and, for each class, chemical, physical and application aspects will be discussed in a comprehensive way. Introduction to the lecture: Course objectives. Definition of functional materials and its relations to smart materials. Trasducers, sensors and actuators. Use of sensors in high technological devices (e.g. smartphones). MEMS. Solid state synthesis: Solid state reactions: ceramic method, Combustion Synthesis. Co-precipitation methods. Precursor methods. Mechano-chemical Synthesis. Sintering. Intercalation reactions. Related examples. Formation of Solids from Solutions and Melts: Sol-gel process: definition, steps and reactions. Examples. Solvothermal Processes. Hydrothermal synthesis of single crystals. Thin-film deposition techniques: Introduction and process steps. Classification of thin-film deposition technology. Physical vapor deposition and chemical vapor deposition. Examples of use in different fields. Evaporation step. Knudsen number. Step coverage. Deposition steps. Epitaxy. Fractional mismatch. Substrates for epitaxy. Heteroepitaxy of semiconductors. Epitaxy techniques (LPE, VPE, MBE, MOCVD). Energy beams: electron beams, cathodic and anodic arc, pulsed beams, ion-beam sputtering. Chemical vapor deposition (CVD) and comparison with physical vapor deposition PVD. Gas transport, reactors and typical overall reactions used in CVD. Precursors. Case exemplary study: Deposition of SiO2. Single crystals growing in functional materials: Semiconductor materials list. p-n junction. Methods for single crystal production of semiconductors: Czochralski process, Float-zone growing, Bridgman technique. Wafer production of Si -p and –n doped. Three examples of functional materials: Themoelectric materials: Seebeck and Peltier effects. . Figure of merit zT. Thermoelectric modules. Phonon-glass electron crystal (PGEC). Applications. Piezoelectrics: Piezoelectricity and crystal symmetry. Lead zirconate titanate (PZT) and other perovskitic materials. Their applications. LED (Light Emitting Diodes): From infrared to the blue LED. TESTI/BIBLIOGRAFIA Synthesis of Inorganic Materials, U.Schubert, N.Hüsing, Wiley-VCH, 2012 Inorganic materials, D.W.Bruce, D.O’Hare, J.Wiley&Sons, 1997 Basic Solid State Chemistry, A.R.West, Wiley-VCH, 1984 Solid State chemistry, Anthony R. West, J. Wiley e Sons 1990 DOCENTI E COMMISSIONI MAURO GIOVANNINI Ricevimento: Every day by appointment Commissione d'esame MAURO GIOVANNINI (Presidente) PAOLA RIANI LEZIONI INIZIO LEZIONI 22/2/2022 Orari delle lezioni L'orario di questo insegnamento è consultabile all'indirizzo: Portale EasyAcademy ESAMI MODALITA' D'ESAME Student evaluation will be carried out in a traditional way, by means of a written final exam. In the case the student is willing to improve his/her mark, he/she could take a further oral exams. MODALITA' DI ACCERTAMENTO The written examination allows to check accurately the achievement of the educational goals of the course. It will consists of 6 questions about subjects discussed during the lecture and in ordert to pass the exam the student should answer, at least, to 4 of them Calendario appelli Data appello Orario Luogo Tipologia Note 13/06/2024 09:30 GENOVA Scritto 25/06/2024 09:30 GENOVA Scritto Agenda 2030 Energia pulita e accessibile Consumo e produzione responsabili