Journal
APPLIED PHYSICS LETTERS
Volume 85, Issue 17, Pages 3780-3782Publisher
AMER INST PHYSICS
DOI: 10.1063/1.1810627
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Low temperature annealing of electron irradiation-induced deep levels in 4H-SiC is reported. The major deep level transient spectroscopy peak S2 associated with the energy level at E-c-0.39 eV disappears in the temperature range 360-400 K, and some rearrangement of the peak S3, associated with the defect Z(1)/Z(2) with energy level at E-c-0.5/E-c-0.65 eV occurs in the temperature interval 400-470 K. A net free charge carrier concentration increase goes along with the disappearance of peak S2 at E-c-0.39 eV, whereas the charge collection efficiency of the diode does not experience any significant change. An interpretation of the annealing of peak S2 on a microscopic scale is given. (C) 2004 American Institute of Physics.
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