Abstract
In this study we aimed to research the effect of thermal annealing on thermal equilibrium defect density. In order to realize that goal Schottky diodes of Au/a-Si:H/a-Si:H(n-type)/Cr structure were fabricated. The gap states in the energy range of 0.35 - 0.50 eV were found by Michelson's drive level profiling method before and after thermal annealing processes in the temperature range 100 - C. Results about the thermal annealing effect on the density of states distribution were interpreted in terms of the defect compensation model of doping.
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