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INORGANIC FUNCTIONAL MATERIALS

CODE 104069
ACADEMIC YEAR 2020/2021
CREDITS 3 credits during the 1st year of 9017 Materials Science and Engineering (LM-53) GENOVA
SCIENTIFIC DISCIPLINARY SECTOR CHIM/03
LANGUAGE English
TEACHING LOCATION GENOVA (Materials Science and Engineering)
SEMESTER 2° Semester
TEACHING MATERIALS AULAWEB

OVERVIEW

Introduction to processes for the preparation and modification of functional inorganic materials. Properties of the synthesized materials and their applications.

AIMS AND CONTENT

LEARNING OUTCOMES

"Aim of the course is to provide the student with an updated overview in the field of inorganic materials with particular focus on techniques for synthesis, processing and controlled modification of materials in view of their most current applications "

TEACHING METHODS

Traditional lectures

SYLLABUS/CONTENT

Introduction to the lecture: 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, spinel structure and synthesis. Co-precipitation methods. Precursors methods. Mechano-chemical Synthesis. Sintering. Microwaves synthesis. Related examples.

Sol-gel method: Sol-gel process: definition, steps and reactions. Process parameters starting from silicon alcoxides: pH, alcoxid/aqua ratio, solvent. Gelation (models) and aging. Aerogel. Sol-gel process starting from inorganic precursors or non silicon alcoxides: process parameters.

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 funzional materials:  P-n junction. Diode Examples of application of p-n juctions. Semiconductor materials list. Methods for single crystal production of semiconductors: Czochralski process, Float-zone growing, Bridgman technique. Wafer production of Si -p and –n doped.

Two 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.

RECOMMENDED READING/BIBLIOGRAPHY

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

TEACHERS AND EXAM BOARD

Exam Board

PAOLA RIANI (President)

MAURO GIOVANNINI

GABRIELE CACCIAMANI (President Substitute)

LESSONS

TEACHING METHODS

Traditional lectures

LESSONS START

22/2/2021

Class schedule

All class schedules are posted on the EasyAcademy portal.

EXAMS

EXAM DESCRIPTION

Oral examination

ASSESSMENT METHODS

The oral examination, lasting at least half an hour, allows to check accurately the achievement of the educational goals of the course.

Exam schedule

Date Time Location Type Notes
18/06/2021 09:30 GENOVA Orale
02/07/2021 09:30 GENOVA Orale
16/07/2021 09:30 GENOVA Orale
03/09/2021 09:30 GENOVA Orale
17/09/2021 09:30 GENOVA Orale