LABORATORY FOR SPECTROSCOPY MOLECULAR MATERIALS
Learning outcomes of the course unit
At the end of the course the students will be able to indipendently perform and analyze spectroscopic experiments in the field of molecular crystals
Course contents summary
Optical properties of molecular solids
Electromagnetic theory; Absorbance and reflectance of crystal surfaces. Kramers-Kronig dipersion relations; absorption coefficents, refraction index, optical conductivity and dielectric function
Optical spectra of synthetic metals: Drude model; band structure model. Electron-electron and electron-phonon interactions.
Optica spectra of molecular crystals (semiconductors): Interband transitions. Collective electronic states; molecular excitons; electron-phonon interactions.
Symmetry in crystals: Factor group analysis; oriented gas model.
Phonons in molecular crystals: Intramolecular vibrations and lattice vibrations
Phase transitions
Experimental methods
Main spectroscopic technique: UV-VIS e IR spectroscopy; Raman spectroscopy. Cryogenic and high pressure (diamond anvil cell) techniques.
Lab Experiences
Lab experiences will focus on one topics to be chosen by students
Recommended readings
J.C.Decius and R.M.Hexter "Molecular vibrations in crystals" (McGraw-Hill 1977).
G. Turrell "Infrared and Raman properties of crystals" (Academic Press 1972).
H. Kuzmany "Solid State Spectroscopy" (Springer 1998).
M.Dressel and G.Gruner "Electrodynamics of solids" (Cambridge 2002).
Review and research papers easily accessible in the local scientific library
