Institute of Electrical Engineering SAS
Topic
Study and optimization of detectors of ionizing detectors based on wide bandgap semiconductors SiC and diamond.
PhD. program
Physics of Condensed Matter and Acoustics
Year of admission
2024
Name of the supervisor
Mgr. Bohumír Zaťko, PhD
Contact:
Receiving school
Faculty of Mathematics, Physics and Informatics
Annotation
The aim of the thesis is the technological preparation of ionizing detectors, the study of electrical and detection properties and the influence of radiation dose on their performance. The detection materials used are high quality epitaxial layers of 4H-SiC, polycrystalline and monocrystalline diamond layers. The work will initially focus on the design and fabrication of detection structures based on Schottky contacts. This will be followed by electrical characterization (current-voltage, capacitance-voltage measurements at different temperatures). SiC and diamond are wide bandgap materials that can operate at elevated temperatures. Selected suitable detection structures will be connected to a low noise spectrometric setup and their properties for particle detection at room and elevated temperatures will be evaluated. Subsequent structures will be irradiated with high doses of electron, proton or neutron-based radiation and their properties after irradiation will be investigated. Finally, the radiation hardness will be evaluated and compared with standard silicon detectors.
The work will be carried out at the Institute of Electrical Engineering Slovak Academy of Sciences, which has modern technological equipment necessary for the preparation and testing of various types of semiconductor structures. The PhD student will acquire knowledge in the preparation of semiconductor detector structures and will be actively involved in teamwork within national and international projects dealing with the preparation and testing of radiation detector structures.
The work will be carried out at the Institute of Electrical Engineering Slovak Academy of Sciences, which has modern technological equipment necessary for the preparation and testing of various types of semiconductor structures. The PhD student will acquire knowledge in the preparation of semiconductor detector structures and will be actively involved in teamwork within national and international projects dealing with the preparation and testing of radiation detector structures.