Electron & energy transfer in organic & hybrid systems
ChE-614 / 2 credits
Teacher(s): Marchioro Arianna, Nüesch Frank
Language: English
Remark: Next course January 2025
Frequency
Every year
Summary
Electron and energy transfer processes are fundamental to numerous biologica! processes. ln synthetic molecular and hybrid systems and devices, they are key to the functionality and efficiency of various devices. Advances in understanding and manipulating these processes continue to drive innovation
Content
A. Interaction of light with molecules
- Generation of excited molecular states by light absorption: - Transition dipole moment and
selection rules
- Generation of excited states by chemical processes
- Electron-phonon coupling: Huang Rys factor
- Fundamental aspects of absorption, fluorescence, intersystem crossing and internal
conversion
- Spectroscopic methods
B. Energy transfer
- Radiative and non-radiative processes (Dexter and Förster transfer)
- Excitons in molecular aggregates: Davidov splitting
- Coherent/incoherent energy transfer
- Charge transfer states
- Exciton-exciton annihilation and fusion
C. Electron transfer
- Marcus theory
- Experimental methods: Flash photolysis and transient absorption
D. Biological systems and Applications
- Photosynthesis and chemiluminescence
- Dye sensitized solar cells
- Perovskite solar cells
- Organic solar cells and photodetectors
- OLEDS
- Organic up-converter Devices
Note
13-17.01.2025
Keywords
Organic conjugated molecules, conjugated polymers, molecular orbitals, absorption, fluorescence,
phosphorescence, electron transfer, energy transfer, photosynthesis, chemiluminescence, solar cells.
Assessment methods
Presentation of the problems in front of the class.Attendance is mandatory for ail students and will last for about 6h.
On Thursday the student have a full day (8h) to prepare for a problem to be presented in class on Friday.
Resources
Bibliography
Gilbert, J. Baggott, Essentials of Molecular Photochemistry, Blackwell Sci. Publ., Oxford, 1991.
• P. W. Atkins, R. S. Friedmann, Molecular Quantum Mechanics, Oxford University Press, Oxford, 1997.
• A. Köhler and H. BÀssler Electronic Processes in Organic Semiconductors, Wiley-VCH, Weinheim, 2015
Ressources en bibliothèque
- Gilbert, J. Baggott, Essentials of Molecular Photochemistry
- W. Atkins, R. S. Friedmann, Molecular Quantum Mechanics
- Anna KoÌhler, Heinz BaÌssler, Electronic Processes in Organic Semiconductors
Moodle Link
In the programs
- Exam form: Oral presentation (session free)
- Subject examined: Electron & energy transfer in organic & hybrid systems
- Courses: 24 Hour(s)
- Exercises: 8 Hour(s)
- Type: optional