Investigating the effect of number of metal electrodes on performance parameters of AlGaN MSM photodetectors

IF 0.5 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

International Journal on Smart Sensing and Intelligent Systems Pub Date : 2022-01-01 DOI:10.2478/ijssis-2022-0015

H. Kaur, H. Kaur, M. Hooda

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引用次数: 0

Abstract

Abstract In most past studies, MSM (Metal–Semiconductor–Metal) detectors with the varying area have been investigated for varying number of fingers (metal electrodes) of equal width (W) and spacing (S). Therefore, there is a need to investigate fixed area MSM detectors with varying number of fingers as there are few reports on electrical analysis of larger electrode spacing dimensions. In the current work effect of variation in the number of fingers is studied for two types of Al0.5Ga0.5N/AlN/Sapphire based fixed area MSM detectors. Comparative performance analysis between (S = W) and (S = 2W) based detectors is carried out for photocurrent, dark current density and transient response. I–V characteristics, structure diagram plots are generated using the TCAD Silvaco simulator. It has been observed that S = W detectors exhibit higher photocurrent and lower dark current density is shown by S = 2W designs. Therefore, simulation outcomes can be beneficial for selecting suitable MSM detector for reliable, high-speed optical communication and switching applications.

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金属电极数量对AlGaN-MSM光电探测器性能参数影响的研究

摘要在过去的大多数研究中，对于不同数量的等宽（W）和等间距（S）的指状物（金属电极），研究了具有不同面积的MSM（金属-半导体-金属）探测器。因此，有必要研究具有不同手指数量的固定面积MSM检测器，因为很少有关于较大电极间距尺寸的电学分析的报告。研究了两种基于Al0.5Ga0.5N/AlN/Sapphire的固定面积MSM探测器的指数变化的电流功效应。对基于（S=W）和（S=2W）的探测器在光电流、暗电流密度和瞬态响应方面的性能进行了比较分析。I–V特性、结构图使用TCAD Silvaco模拟器生成。已经观察到S＝W探测器表现出更高的光电流，并且S＝2W设计显示出更低的暗电流密度。因此，仿真结果有利于为可靠、高速的光通信和交换应用选择合适的MSM检测器。

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来源期刊

International Journal on Smart Sensing and Intelligent Systems ENGINEERING, ELECTRICAL & ELECTRONIC-

CiteScore

2.70

自引率

8.30%

发文量

审稿时长

8 weeks

期刊介绍： nternational Journal on Smart Sensing and Intelligent Systems (S2IS) is a rapid and high-quality international forum wherein academics, researchers and practitioners may publish their high-quality, original, and state-of-the-art papers describing theoretical aspects, system architectures, analysis and design techniques, and implementation experiences in intelligent sensing technologies. The journal publishes articles reporting substantive results on a wide range of smart sensing approaches applied to variety of domain problems, including but not limited to: Ambient Intelligence and Smart Environment Analysis, Evaluation, and Test of Smart Sensors Intelligent Management of Sensors Fundamentals of Smart Sensing Principles and Mechanisms Materials and its Applications for Smart Sensors Smart Sensing Applications, Hardware, Software, Systems, and Technologies Smart Sensors in Multidisciplinary Domains and Problems Smart Sensors in Science and Engineering Smart Sensors in Social Science and Humanity