Design and simulation of silicon detector cells with spiral ring electrode structures

Traditional pixel detectors are neatly arranged rectangular or square electrodes that cover almost the entire surface. Large electrode areas lead to high capacitance, and capacitance is the primary factor affecting detector noise. A large noise signal will reduce detector detection performance and t...

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Main Authors: Xinqing Li, Manwen Liu, Zheng Li
Format: Article
Language:English
Published: AIP Publishing LLC 2021-04-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/5.0049765
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spelling doaj-132fefcb99744907b2a9302525119e1b2021-05-04T14:07:17ZengAIP Publishing LLCAIP Advances2158-32262021-04-01114045127045127-1010.1063/5.0049765Design and simulation of silicon detector cells with spiral ring electrode structuresXinqing Li0Manwen Liu1Zheng Li2College of Physics and Optoelectronic Engineering, Ludong University, Yantai 264025, ChinaInstitute of Microelectronics, Chinese Academy of Sciences, Beijing 100029, ChinaCollege of Physics and Optoelectronic Engineering, Ludong University, Yantai 264025, ChinaTraditional pixel detectors are neatly arranged rectangular or square electrodes that cover almost the entire surface. Large electrode areas lead to high capacitance, and capacitance is the primary factor affecting detector noise. A large noise signal will reduce detector detection performance and the system S/N ratio. We have designed a spiral ring electrode silicon detector cell with n-type silicon bulk and systematically studied its electrical properties, including electric potential distribution, electric field distribution, electron concentration distribution, leakage current, full depletion voltage, and detector capacitance. It has been verified that the spiral ring electrode silicon detector has a smaller capacitance than the traditional detector and a smaller depletion voltage compared with the previously designed structures such as the inner circle broom-shaped structure. At the same time, high position resolution pixel detectors can be made by the array of these detector cells.http://dx.doi.org/10.1063/5.0049765
collection DOAJ
language English
format Article
sources DOAJ
author Xinqing Li
Manwen Liu
Zheng Li
spellingShingle Xinqing Li
Manwen Liu
Zheng Li
Design and simulation of silicon detector cells with spiral ring electrode structures
AIP Advances
author_facet Xinqing Li
Manwen Liu
Zheng Li
author_sort Xinqing Li
title Design and simulation of silicon detector cells with spiral ring electrode structures
title_short Design and simulation of silicon detector cells with spiral ring electrode structures
title_full Design and simulation of silicon detector cells with spiral ring electrode structures
title_fullStr Design and simulation of silicon detector cells with spiral ring electrode structures
title_full_unstemmed Design and simulation of silicon detector cells with spiral ring electrode structures
title_sort design and simulation of silicon detector cells with spiral ring electrode structures
publisher AIP Publishing LLC
series AIP Advances
issn 2158-3226
publishDate 2021-04-01
description Traditional pixel detectors are neatly arranged rectangular or square electrodes that cover almost the entire surface. Large electrode areas lead to high capacitance, and capacitance is the primary factor affecting detector noise. A large noise signal will reduce detector detection performance and the system S/N ratio. We have designed a spiral ring electrode silicon detector cell with n-type silicon bulk and systematically studied its electrical properties, including electric potential distribution, electric field distribution, electron concentration distribution, leakage current, full depletion voltage, and detector capacitance. It has been verified that the spiral ring electrode silicon detector has a smaller capacitance than the traditional detector and a smaller depletion voltage compared with the previously designed structures such as the inner circle broom-shaped structure. At the same time, high position resolution pixel detectors can be made by the array of these detector cells.
url http://dx.doi.org/10.1063/5.0049765
work_keys_str_mv AT xinqingli designandsimulationofsilicondetectorcellswithspiralringelectrodestructures
AT manwenliu designandsimulationofsilicondetectorcellswithspiralringelectrodestructures
AT zhengli designandsimulationofsilicondetectorcellswithspiralringelectrodestructures
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