<abstract xmlns="http://www.w3.org/1999/xhtml">

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.
</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.

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

Chitkara University School of Engineering and Technology, Chitkara University

Chitkara University Institute of Engineering and Technology, Chitkara University

International Journal on Smart Sensing and Intelligent Systems

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

In most past studies, MSM (Metal–Semiconductor–Metal) detectors with the varying area have been investigated for varying number of fingers (metal electrodes)...

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

Article Category: Article

Published Online: Sep 14, 2022

Page range: -

Received: Jan 29, 2022

DOI: https://doi.org/10.2478/ijssis-2022-0015

Keywords
Photocurrent, Number of fingers, AlGaN, Metal–semiconductor–metal, Dark current density, Optical

© 2022 Harpreet Kaur et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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

Article Category: Article

Published Online: Sep 14, 2022

Page range: -

Received: Jan 29, 2022

DOI: https://doi.org/10.2478/ijssis-2022-0015

KeywordsPhotocurrent, Number of fingers, AlGaN, Metal–semiconductor–metal, Dark current density, Optical

© 2022 Harpreet Kaur et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
Photocurrent, Number of fingers, AlGaN, Metal–semiconductor–metal, Dark current density, Optical