The variation of the electrical conductivity by the temperature in structure with traps

iiiABSTRACTMaster of Science ThesisTHE VARIATION OF THE ELECTRICAL CONDUCTIVITY BY THETEMPERATURE IN STRUCTURE WITH TRAPSMurat KARAAnadolu UniversityGraduate School of SciencesPhysics ProgramSupervisor: Dr. A. Şenol AYBEK2005, 58 pagesIn this study, thermally stimulated current technique (TSC) wasstudied. Thermally stimulated current is a measurement technique widelyused for the investigation of charge carrier traps in semiconductor materials.There are various of techniques for determining the trap parametersobtained from the TSC. These are quasiequilibrum analysis, heating rate,peak shape and initial rise methods. The Activation energies of CdSsemiconductor films were determined from using initial rise and peak shapetechniques. Various trapping levels at CdS films have been found to liebetween 0,017 and 0,143 eV .Keywords: Activation Energies of Traps, , AS and RC Methods, Initial RiseMethod, Peak Shape Method, TSC and TL Methods.