biostudies-literatureWang JState Key Laboratory of Wide-Bandgap Semiconductor Devices and Integrated TechnologyNational Natural Science Foundation of China2https://www.ebi.ac.uk/biostudies/studies/S-EPMC11767698biostudies-literatureUnknown16(1)In this paper, a silicon carbide (SiC) phototransistor based on an open-base structure was fabricated and used as a radiation detector. In contrast to the exposed and thin sensitive region of traditional photo detectors, the sensitive region of the radiation detector was much thicker (30 μm), ensuring the high energy deposition of radiation particles. The response properties of the fabricated SiC npn radiation detector were characterized by high-energy X-ray illumination with a maximum X-ray photon energy of 30 keV. The SiC npn detector featured stable and clear response to the X-ray within 0.0766 Gy∙s^-1 to 0.766 Gy∙s^-1 below 300 V. Due to to the low leakage current of less than 1 nA and the fully depleted sensitive region, the bipolar-transistor-modeled SiC npn detecMicromachinesX-Ray Performance of SiC NPN Radiation Detector.PMC11767698622041982413S12112305204Zhou LBai SChen ZOuyang XChen LWang FZhang SWang JFan TfalseX-Ray Performance of SiC NPN Radiation Detector.In this paper, a silicon carbide (SiC) phototransistor based on an open-base structure was fabricated and used as a radiation detector. In contrast to the exposed and thin sensitive region of traditional photo detectors, the sensitive region of the radiation detector was much thicker (30 μm), ensuring the high energy deposition of radiation particles. The response properties of the fabricated SiC npn radiation detector were characterized by high-energy X-ray illumination with a maximum X-ray photon energy of 30 keV. The SiC npn detector featured stable and clear response to the X-ray within 0.0766 Gy∙s^-1 to 0.766 Gy∙s^-1 below 300 V. Due to to the low leakage current of less than 1 nA and the fully depleted sensitive region, the bipolar-transistor-modeled SiC npn detec2024-01-01T00:00:00Z2024 Dec2025-04-25T18:50:29.15Z2025-04-06T07:45:27.161ZS-EPMC117676983985865710.3390/mi16010002