A graphene electrode on a 4H-SiC PIN detector shortens alpha-particle signal rise time by 24% at 200 V while keeping charge collection efficiency above 99%, and shows only mild timing degradation after 2e11 neq/cm2 proton irradiation.
SiC detectors: A review on the use of silicon carbide as radiation detection material,
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Rise Time and Charge Collection Efficiency of Graphene-Optimized 4H-SiC PIN Detector
A graphene electrode on a 4H-SiC PIN detector shortens alpha-particle signal rise time by 24% at 200 V while keeping charge collection efficiency above 99%, and shows only mild timing degradation after 2e11 neq/cm2 proton irradiation.