Optical coupling optimization in a novel metal-semiconductor-metal ultraviolet photodetector based on semicircular Schottky electrodes
A novel semicircular electrode metal-semiconductor-metal（SEMSM） ultraviolet detector is modeled, investigated and characterized with a self-consistent numerical calculation method.For the purpose of model and performance verification,a comprehensive comparison of the SEMSM detector and a conventiona...
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| Published in | Journal of semiconductors Vol. 33; no. 5; pp. 74 - 79 |
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| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
01.05.2012
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1674-4926 |
| DOI | 10.1088/1674-4926/33/5/054010 |
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| Abstract | A novel semicircular electrode metal-semiconductor-metal（SEMSM） ultraviolet detector is modeled, investigated and characterized with a self-consistent numerical calculation method.For the purpose of model and performance verification,a comprehensive comparison of the SEMSM detector and a conventional electrode MSM detector is carried out with experimental data.The results indicate that the physical models are able to predict the enhanced device features.Moreover,the structural parameters have been adjusted appropriately to optimize the SEMSM detector.The findings show that a device with a 2μm finger radius and 3 /mi spacing exhibits outstanding characteristics in terms of a peak responsivity of 0.177 A/W at 290 nm,a maximum external quantum efficiency of over 75%,and a comparable normalized photocurrent to dark current ratio of 1.192×10~（-1） W~（-1） at 0.3 V bias. These results demonstrate that the SEMSM detector has excellent performance for optoelectronic integrated circuit applications. |
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| AbstractList | A novel semicircular electrode metal-semiconductor-metal（SEMSM） ultraviolet detector is modeled, investigated and characterized with a self-consistent numerical calculation method.For the purpose of model and performance verification,a comprehensive comparison of the SEMSM detector and a conventional electrode MSM detector is carried out with experimental data.The results indicate that the physical models are able to predict the enhanced device features.Moreover,the structural parameters have been adjusted appropriately to optimize the SEMSM detector.The findings show that a device with a 2μm finger radius and 3 /mi spacing exhibits outstanding characteristics in terms of a peak responsivity of 0.177 A/W at 290 nm,a maximum external quantum efficiency of over 75%,and a comparable normalized photocurrent to dark current ratio of 1.192×10~（-1） W~（-1） at 0.3 V bias. These results demonstrate that the SEMSM detector has excellent performance for optoelectronic integrated circuit applications. A novel semicircular electrode metal-semiconductor-metal (SEMSM) ultraviolet detector is modeled, investigated and characterized with a self-consistent numerical calculation method. For the purpose of model and performance verification, a comprehensive comparison of the SEMSM detector and a conventional electrode MSM detector is carried out with experimental data. The results indicate that the physical models are able to predict the enhanced device features. Moreover, the structural parameters have been adjusted appropriately to optimize the SEMSM detector. The findings show that a device with a 2 mu m finger radius and 3 mu m spacing exhibits outstanding characteristics in terms of a peak responsivity of 0.177 A/W at 290 nm, a maximum external quantum efficiency of over 75%, and a comparable normalized photocurrent to dark current ratio of 1.192 x 10 super(11) W super(-1) at 0.3 V bias. These results demonstrate that the SEMSM detector has excellent performance for optoelectronic integrated circuit applications. |
| Author | 陈斌 杨银堂 柴常春 王宁 马振洋 谢宣蓉 |
| AuthorAffiliation | Key Laboratory of Ministry of Education for Wide Band-Gap Semiconductor Materials and Devices,School of Microelectronics,Xidian University;No.771 Institute of Microelectronics Technology |
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| Cites_doi | 10.1007/s11433-008-0167-6 10.1109/JSEN.2007.913033 10.4028/www.scientific.net/MSF.389-393.679 10.4028/www.scientific.net/MSF.483-485.413 10.1088/1674-4926/32/7/074008 10.1149/1.2900102 10.1016/j.optcom.2010.11.065 10.1016/j.mssp.2008.11.001 10.1109/JSEN.2002.802240 10.1117/12.386781 10.1016/S0038-1101(02)00273-3 10.1088/1674-4926/30/6/063004 10.1063/1.120309 10.1007/978-3-662-03848-2 10.1063/1.368403 10.1109/LED.2006.871177 10.1017/CBO9781139164214 10.1088/0022-3727/40/20/S17 10.1088/1674-4926/31/6/064010 10.1063/1.2949318 |
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| DocumentTitleAlternate | Optical coupling optimization in a novel metal-semiconductor-metal ultraviolet photodetector based on semicircular Schottky electrodes |
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| Notes | semicircular contact MSM ultraviolet photodetector optimization Chen Bin, Yang Yintang, Chai Changchun, Wang Ning, Ma Zhenyang, and Xie Xuanrong（1Key Laboratory of Ministry of Education for Wide Band-Gap Semiconductor Materials and Devices, School of Microelectronics, Xidian University, Xi＇an 710071, China 2No.771 Institute of Microelectronics Technology, Xi＇an 710054, China） 11-5781/TN A novel semicircular electrode metal-semiconductor-metal（SEMSM） ultraviolet detector is modeled, investigated and characterized with a self-consistent numerical calculation method.For the purpose of model and performance verification,a comprehensive comparison of the SEMSM detector and a conventional electrode MSM detector is carried out with experimental data.The results indicate that the physical models are able to predict the enhanced device features.Moreover,the structural parameters have been adjusted appropriately to optimize the SEMSM detector.The findings show that a device with a 2μm finger radius and 3 /mi spacing exhibits outstanding characteristics in terms of a peak responsivity of 0.177 A/W at 290 nm,a maximum external quantum efficiency of over 75%,and a comparable normalized photocurrent to dark current ratio of 1.192×10~（-1） W~（-1） at 0.3 V bias. These results demonstrate that the SEMSM detector has excellent performance for optoelectronic integrated circuit applications. ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
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| References | Li Y Y (5) 2009; 30 11 22 Chen B (17) 2010; 31 23 Lü H M (12) 2006; 35 13 Su S C (6) 2011; 32 14 DESSIS-ISE (16) 15 Zou Z Y (4) 2008; 29 18 Yu Y P (19) 1999 Wright N G (3) 2007; 40 1 2 Seabra A C (9) 2000; 4089 7 8 Brennan K F (20) 1999 10 21 |
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| Snippet | A novel semicircular electrode metal-semiconductor-metal（SEMSM） ultraviolet detector is modeled, investigated and characterized with a self-consistent... A novel semicircular electrode metal-semiconductor-metal (SEMSM) ultraviolet detector is modeled, investigated and characterized with a self-consistent... |
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| SubjectTerms | Detectors Devices Electrodes Mathematical models Photocurrent Photoelectric effect Semiconductors Ultraviolet 半圆形 半导体 基础 电极 紫外探测器 耦合优化 肖特基 金属结构 |
| Title | Optical coupling optimization in a novel metal-semiconductor-metal ultraviolet photodetector based on semicircular Schottky electrodes |
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