Abstract
Proton beam writing was carried out into high purity semi-insulating 4H-SiC bulk substrates. Luminescent defects created in the SiC by proton beam writing using 1.7 MeV-proton micro beams were investigated at room temperature using confocal laser scanning microscope. As a result, photoluminescence peak around 900 nm associated with silicon vacancy was observed for the irradiated SiC without post implantation process such as annealing. The overall depth profile of photon counts detected from irradiated areas is in good agreement with simulated vacancy depth profile. This suggests that silicon vacancy can be applied to ion tracking detector. In addition, since silicon vacancy is known as single photon source of which spins can be controlled at RT, PBW is expected to be a useful tool to fabricate spin qubits.
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