A Large Gain and High Resolution Diamond Radiation Detector With Au/Hydrogen Termination Ohmic Contact

Kai Su,Hanxue Wang,Qi He,Zeyang Ren,Jinfeng Zhang,Linyue Liu,Jincheng Zhang,Yachao Zhang,Xiaoping Ouyang,Weimin Bao,Yue Hao

IEEE Electron Device Letters（2022）

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Abstract

Diamond radiation detector (DRD) with high performance in dose detection and energy resolution is demonstrated in this letter. Benefiting from a good ohmic contact between hydrogen terminated diamond surface and Au, and very low defects in single crystal diamond, this DRD achieves a large current gain factor of 151.83 (349.93 at 1 V/ $\mu \text{m}$ More

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Key words

Diamond,Energy resolution,Electrodes,Sensitivity,Linearity,Current measurement,Dark current

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