Abstract
The V4+ (3d(1)) center in 4H SiC is investigated using photoluminescence (PL) and photoluminescence excitation (PLE). The energy position of the ground state of the defect is determined to be 2.1 +/- 0.1 eV below the conduction band for both the hexagonal and the quasi-cubic site. A broad peak in the PLE spectrum is tentatively ascribed to the excited A(1) state, previously believed to be located in the conduction band.
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