Detail předmětu
Photochemistry
FCH-MA_FCPAk. rok: 2024/2025
Fundamental principles, structure of electronic excited states, electronic absorption spectra, static and dynamic properties of excited states, Jablonski diagram and transitions between electronic excited states, kinetics of photophysical and photochemical processes. Sources of UV radiation. Basics of photochemical reactions, photocatalytic reactions. Imaging systems, photochemical imaging systems (light sensitive polymers, others), UV curing technology and systems, electrophotography, photodegradation and photostabilization of polymer materials, environmental photochemical processes and technologies.
Jazyk výuky
Počet kreditů
Garant předmětu
Zajišťuje ústav
Nabízen zahraničním studentům
Pravidla hodnocení a ukončení předmětu
Učební cíle
Theoretical background of photochemistry and photophysics, photochemical reactions of organic, inorganic and macromolecular compounds, polymer imaging systems and photopolymerizable systems and their use, photodegradation and photostabilisation of polymer materials, background of photochemical reactions in atmosphere.
Základní literatura
Elearning
Zařazení předmětu ve studijních plánech
- Program NKCP_CHCHTE magisterský navazující 1 ročník, zimní semestr, povinný
- Program NPCP_CHCHTE magisterský navazující 1 ročník, zimní semestr, povinný
- Program NPAP_ENVI magisterský navazující 1 ročník, zimní semestr, povinný
Typ (způsob) výuky
Přednáška
Vyučující / Lektor
Osnova
1.1 The quantum nature of matter and light
1.2 Modelling atoms: atomic orbitals
1.3 Modelling molecules: molecular orbitals
1.4 Modelling molecules: electronic states
1.5 Light sources used in photochemistry (mercury lamp and lasers)
1.6 Efficiency of photochemical processes: quantum yield
2 Light Absorption and Electronically-excited States
2.1 The Beer-Lambert law
2.2 The physical basis of light absorption by molecules
2.3 Absorption of light by organic molecules
3 The Physical Deactivation of Excited States
3.1 Jablonski diagrams
3.2 Excited-state lifetimes
4 Radiative Processes of Excited States
4.1 Fluorescence and fluorescence spectra
4.2 Fluorescence quantum yield
4.3 Molecular fluorescence in analytical chemistry
4.4 Phosphorescence
4.5 Delayed fluorescence
4.6 Lanthanide luminescence
5 Intramolecular Radiationless Transitions of Excited States
5.1 The energy gap law
5.2 The Franck-Condon factor
5.3 Selection rules for intersystem crossing
6 Intermolecular Physical Processes of Excited States
6.1 Quenching Processes
7 Investigating Some Aspects of Photochemical Reaction Mechanisms
7.1 Information from electronic spectra
7.2 Triplet-quenching studies
7.3 Sensitisation
8 Semiconductor Photochemistry
8.1 Solar energy conversion by photovoltaic cells
8.2 Semiconductors as sensitisers for water splitting
8.3 Semiconductor photocatalysis
8.4 Semiconductor – photoinduced superhydrophilicity
9 Imaging systems, photochemical imaging systems
9.1 Photoresists
9.2 UV curing technology
Elearning