Course detail
Plasma Chemistry
FCH-MAO_PLA1Acad. year: 2012/2013
This course is focused on basic properties and processes taking place in plasma, including their diagnostics and possible applications. Students are introduced to plasma thermodynamics and kinetics (non-equilibrium and equilibrium plasma, collision processes, distribution functions, basic transport processes in plasma). Lectures also provide a list of basic methods of plasma diagnostics (spectral, probe, and corpuscular methods). The main part of the course deals with plasma in labs, its properties, particular types of electrical discharges, its generation and possible applications (dc, ac, RF, MW, discharges in liquids, plasma excited at high pressure, capacitive and inductive coupled plasma). A list of plasma chemical processes contains especially reactions in active and post-discharge plasma, surface treatment of various materials, creation of thin layers (PE CVD, PA CVD), plasma polymerization, plasma spraying, sputtering, and etching. Moreover, lasers, plasma displays, and plasma as illumination tools belong to special plasma kinds using assisted chemical reactions.
Language of instruction
Number of ECTS credits
Mode of study
Guarantor
Offered to foreign students
Learning outcomes of the course unit
Prerequisites
Physics - mass point motion, electric field and current, magnetic field
Mathematics - differential equations
Co-requisites
Planned learning activities and teaching methods
Assesment methods and criteria linked to learning outcomes
Course curriculum
Thermodynamic equilibrium and disequilibrium plasma, non-isothermic plasma.
Debye diameter, plasma frequency.
Basic collision processes, cross section, collision frequency.
2. Plasma kinetic theory
Distribution functions.
Boltzmann kinetic equation and its solution, collision factor.
Maxwell distribution function.
Equation of continuity, Langevin equation.
3. Plasma properties
Inner and outer plasma parameters.
Electric conductivity, diffusion and ambipolar diffusion, temperature and concentration of charged particles in various kinds of plasma.
Dielectric plasma properties.
Plasma interaction with electromagnetic fields.
4.-5. Laboratory plasma
Conditions for ignition of various discharges (DC, RF, MW), Townsend´s theory of avalanche growth, Paschen law.
Electric discharges in gases (DC, RF, MW, corona, gliding, barrier, capacitive and inductive coupled discharges).
Electric discharges in liquids.
6.-7. Plasma diagnostics
Spectral and optical methods (electron, excitation, vibrational a rotational temperature), absorption spectroskopy of plasma (CRD, LIF, Raman scattering).
Probe methods (floating and plasma potential, simple and double Langmuir probe).
Corpuscular methods (mass spectrometry, actinometry).
8.-10. Plazmachemical processes
Kinetics of plazmachemical reactions, conditions for realization of plazmachemical reactions, rates of chemical reactions, reactions in non-equilibrium chemical kinetics.
Synthesis of organic compounds, plasma polymerization, deposition of organic layers, semipermeable membranes.
Plasma treatment of solid materials (polymers, textile, glass, semiconductors), change of adhesivity and wettability, surface oxidation reactions, grafting, change of molecular weight, ablation.
Plasma interaction with metals, plasma nitridation, PE CVD, PA CVD.
Plazmachemical treatment of natural materials.
11. Plazmachemical technologies
Sputtering (magnetron, diode, high frequency).
Plasma spraying, plasmatrons.
Plasma etching, electron beam.
12. Special kinds of plasma with participation of chemical reactions
Plasma in illumination techniques, chemical lasers, flat plasma displays.
Work placements
Aims
Specification of controlled education, way of implementation and compensation for absences
Recommended optional programme components
Prerequisites and corequisites
Basic literature
Recommended reading
Roth J. R.: Industrial Plasma Engineering Volume 2: Applications to Nonthermal Plasma Processing. Institute of Physics Publishing, Bristol and Philadelphia 2001. (EN)
Classification of course in study plans
- Programme NPCP_SCH Master's
branch NPCO_SCH , 1 year of study, summer semester, compulsory-optional
branch NPCO_SCH , 2 year of study, summer semester, compulsory-optional - Programme NPCP_CHM_INT Master's
branch NPCO_CHM , 1 year of study, summer semester, elective
- Programme CKCP_CZV lifelong learning
branch CKCO_CZV , 1 year of study, summer semester, compulsory-optional
Type of course unit
Guided consultation in combined form of studies
Teacher / Lecturer