The Influence of Structural Design on the Electronic Properties of a Frisch Grid Cadmium Zinc Telluride Detector by a Finite Element Method
Cadmium zinc telluride (CZT) detectors have the advantages of high detection efficiency and good energy resolution, which are widely used in the fields of X-ray detection, environmental monitoring and nuclear radiation detection. The Frisch grid structure is used more often in the preparation of det...
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MDPI AG
2025-04-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/15/4/361 |
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| author | Zhenzhao Zhang Yu Li Meng Cao Weifan He Zhen Xu Jian Huang Linjun Wang |
| author_facet | Zhenzhao Zhang Yu Li Meng Cao Weifan He Zhen Xu Jian Huang Linjun Wang |
| author_sort | Zhenzhao Zhang |
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| description | Cadmium zinc telluride (CZT) detectors have the advantages of high detection efficiency and good energy resolution, which are widely used in the fields of X-ray detection, environmental monitoring and nuclear radiation detection. The Frisch grid structure is used more often in the preparation of detectors because of its good unipolarity and simple structure. In this paper, the effects of changing the gate position, width and relative dielectric constant on the electrical properties of Frisch grid CZT detectors, such as potential, weight potential, electric field distribution and charge collection efficiency, are simulated in detail by the finite element method. From the simulation results, the optimisation of the performance of the Frisch grid detector is mainly based on minimising the distance between the gate and anode within a reasonable interval, increasing the area of the Frisch grid and selecting a material with a high relative permittivity for the fabrication of the Frisch grid. The research work contributes to the development of CZT detectors. |
| format | Article |
| id | doaj-art-efe45bc9c9c945fcbb32d66d5d8ac6f1 |
| institution | OA Journals |
| issn | 2073-4352 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj-art-efe45bc9c9c945fcbb32d66d5d8ac6f12025-08-20T02:28:28ZengMDPI AGCrystals2073-43522025-04-0115436110.3390/cryst15040361The Influence of Structural Design on the Electronic Properties of a Frisch Grid Cadmium Zinc Telluride Detector by a Finite Element MethodZhenzhao Zhang0Yu Li1Meng Cao2Weifan He3Zhen Xu4Jian Huang5Linjun Wang6School of Materials Science and Engineering, Shanghai University, Shanghai 200444, ChinaNanjing Engineering Branch, Jiangsu Union Technical Institute, Nanjing 211135, ChinaSchool of Materials Science and Engineering, Shanghai University, Shanghai 200444, ChinaSchool of Materials Science and Engineering, Shanghai University, Shanghai 200444, ChinaSchool of Materials Science and Engineering, Shanghai University, Shanghai 200444, ChinaSchool of Materials Science and Engineering, Shanghai University, Shanghai 200444, ChinaSchool of Materials Science and Engineering, Shanghai University, Shanghai 200444, ChinaCadmium zinc telluride (CZT) detectors have the advantages of high detection efficiency and good energy resolution, which are widely used in the fields of X-ray detection, environmental monitoring and nuclear radiation detection. The Frisch grid structure is used more often in the preparation of detectors because of its good unipolarity and simple structure. In this paper, the effects of changing the gate position, width and relative dielectric constant on the electrical properties of Frisch grid CZT detectors, such as potential, weight potential, electric field distribution and charge collection efficiency, are simulated in detail by the finite element method. From the simulation results, the optimisation of the performance of the Frisch grid detector is mainly based on minimising the distance between the gate and anode within a reasonable interval, increasing the area of the Frisch grid and selecting a material with a high relative permittivity for the fabrication of the Frisch grid. The research work contributes to the development of CZT detectors.https://www.mdpi.com/2073-4352/15/4/361virtual Frisch gridCZT detectorfinite element method |
| spellingShingle | Zhenzhao Zhang Yu Li Meng Cao Weifan He Zhen Xu Jian Huang Linjun Wang The Influence of Structural Design on the Electronic Properties of a Frisch Grid Cadmium Zinc Telluride Detector by a Finite Element Method Crystals virtual Frisch grid CZT detector finite element method |
| title | The Influence of Structural Design on the Electronic Properties of a Frisch Grid Cadmium Zinc Telluride Detector by a Finite Element Method |
| title_full | The Influence of Structural Design on the Electronic Properties of a Frisch Grid Cadmium Zinc Telluride Detector by a Finite Element Method |
| title_fullStr | The Influence of Structural Design on the Electronic Properties of a Frisch Grid Cadmium Zinc Telluride Detector by a Finite Element Method |
| title_full_unstemmed | The Influence of Structural Design on the Electronic Properties of a Frisch Grid Cadmium Zinc Telluride Detector by a Finite Element Method |
| title_short | The Influence of Structural Design on the Electronic Properties of a Frisch Grid Cadmium Zinc Telluride Detector by a Finite Element Method |
| title_sort | influence of structural design on the electronic properties of a frisch grid cadmium zinc telluride detector by a finite element method |
| topic | virtual Frisch grid CZT detector finite element method |
| url | https://www.mdpi.com/2073-4352/15/4/361 |
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