Course detail
Spectroscopic methods for non-destructive diagnostics
FEKT-DFY2Acad. year: 2019/2020
The subject of the seminar are three methods, dealing with the description, experimental investigation and localisation of defects, namely noise non-destructive spectroscopy, partial discharges based diagnostics and dielectric relaxation spectroscopy. Main topics cover transport and stochastic processes, noise non-destructive spectroscopy, non-destructive diagnostics, reliability tests, mechanisms of of partial discharges, polarisation of a dielectric in an electric field, polarisation mechanisms at a microscopic level, mathematical and physical description of dielectric polarisation, dielectric relaxation spectroscopy.
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Course curriculum
Identification of defects from transport characteristics, V-A characteristics v in forward and reverse direction, excess current, generation-recombination process, degradation
Fluctuation processes, noise spectral power density and its correlation with the type of defect, low-frequency noise as reliability and quality indicator, lambda parameter - mean time to failure and its quantification
Noise density in semiconductor devices, noise in homogenous structures and in thin-layer and thick-layer resistors
Partial discharges and noise in insulators and dielectrics, noise in capacitors
Noise in semiconductor lasers, alloy and FET transistors
RTS noise of semiconductor diodes with quantum holes and dots
Theory for the design of a concept of a non-destructive diagnostic test
Phenomenological description of the polarisation
Types of relaxation mechanisms in polymers, glasses, ceramic systems and in other dielectrics
Mathematical methods for the evaluation of dielectric data
Degradation processes and their observation and monitoring by dielectric methods
Work placements
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Specification of controlled education, way of implementation and compensation for absences
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Classification of course in study plans
- Programme EKT-PK Doctoral
branch PK-EST , 1 year of study, summer semester, elective specialised
branch PK-MVE , 1 year of study, summer semester, elective specialised
branch PP-BEB , 1 year of study, summer semester, elective specialised
branch PK-KAM , 1 year of study, summer semester, elective specialised
branch PK-SEE , 1 year of study, summer semester, elective specialised
branch PK-FEN , 1 year of study, summer semester, elective specialised
branch PK-MET , 1 year of study, summer semester, elective specialised
branch PK-TEE , 1 year of study, summer semester, elective specialised
branch PK-TLI , 1 year of study, summer semester, elective specialised - Programme EKT-PP Doctoral
branch PP-FEN , 1 year of study, summer semester, elective specialised
branch PP-MVE , 1 year of study, summer semester, elective specialised
branch PP-SEE , 1 year of study, summer semester, elective specialised
branch DP-TEE , 1 year of study, summer semester, elective specialised
branch PP-BEB , 1 year of study, summer semester, elective specialised
branch PP-TLI , 1 year of study, summer semester, elective specialised
branch PP-KAM , 1 year of study, summer semester, elective specialised
branch PP-MET , 1 year of study, summer semester, elective specialised
branch PP-EST , 1 year of study, summer semester, elective specialised