Photo-Hall effect spectroscopy and laser-induced transient currents in CdTe-based semiconductor radiation detectors

Author: RNDr. Artem Musiienko, PhD.
Supervisor: Prof. RNDr. Roman Grill, CSc.
Consultants:
Type: Doctoral

Abstract: This thesis reports on the investigation of deep energy levels in CdTe-based high resistivity and detector-grade materials by photo-Hall effect spectroscopy. The existing approach is also extended by dual-wavelength and enhanced monochromatic excitations. Experimental results are completed by numerical simulations based on the Shockley-Read-Hall model. A method is presented for the determination of the carriers drift mobility, lifetime, electric field distribution, and the dynamics of space charge in polarizing semiconductor radiation detectors. The procedure stems from the laser-induced transient current measurements done at steady-state and pulsed biasing and at variable temperature.

Keywords: None

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