Academic Year 2022/2023
- Docente: Elisabetta Venuti
- Credits: 4
- SSD: CHIM/02
- Language: Italian
- Teaching Mode: Traditional lectures
- Campus: Bologna
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Corso:
Second cycle degree programme (LM) in
Industrial Chemistry (cod. 0884)
Also valid for Second cycle degree programme (LM) in Advanced Spectroscopy in Chemistry (cod. 5706)
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from Sep 19, 2022 to Dec 21, 2022
Course contents
Classification of the states of matter. The solid crystal state: Crystal structures: Bravais lattices;unit The crystal symmetry; a structural view of crystal symmetry: bottom-up crystallography in molecular crystals; mathematical representation of crystal symmetry; reciprocal lattice; Bloch functions.
The electronic structure of molecular solids in a simplified form. The band structure; model systems; DOS.
Excited states of aggregates of molecules; Davydov splitting and Mini-Excitons; linear molecular crystals; Frenkel Excitons; physical dimers; Excimers; Band structure; Charge transfer excitons (CT); Exciton processes; Energy transfer.
Vibrations in solids: lattice dynamics; classic description of vibrations of a one dimensional monatomic chain; vibrations of a one dimensional biatomic chain; acoustic and optic branches; extension to a tridimensional crystal. Vibrations in molecular crystals and quantisation of the vibrational energy: Phonons. Quasi particles.
Scattering: phonon-photon scattering and elastic and anelastic processes; X-ray diffraction; phonon-neutron scattering; phonon density of states.
Readings/Bibliography
The Oxford Solid State Basics - Steven H. Simon Oxford University Press
Molecular Aggregation Angelo Gavezzotti - IUCR book series Oxford University Press
Organic Molecular Solids - Markus Schwoerer, Hans Christoph Wolf Wiley-VCH
Electronic Processes in Organic Semiconductors -Anna Köhler and
Heinz Bässler , Wiley-VCH
Lecture notes and slides
Assessment methods
Oral Exam, with two questions and the discussion of a research paper chosen by the student and deling with one of the course topic.
Office hours
See the website of Elisabetta Venuti