Numerical modeling of the temporal response of back-gated metal-semiconductor-metal photodetector in an equilibrium condition
Article
Article Title | Numerical modeling of the temporal response of back-gated metal-semiconductor-metal photodetector in an equilibrium condition |
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ERA Journal ID | 40388 |
Article Category | Article |
Authors | Habibpour, A. (Author), Das, N. (Author) and Mashayekhi, H. R. (Author) |
Journal Title | Iranian Journal of Science and Technology Transaction A: Science |
Journal Citation | 38 (A4), pp. 441-444 |
Number of Pages | 4 |
Year | 2014 |
Place of Publication | Iran |
ISSN | 1028-6276 |
Web Address (URL) | http://ijsts.shirazu.ac.ir/pdf_2560_78a43199e054cf68aafc6f8dc1f77ee6.html |
Abstract | We have simulated the carrier concentration and temporal response characteristics of a Back-Gated Metal-Semiconductor-Metal (BG-MSM) photodetector in one dimension as a function of optical pulse position on the active region in an equilibrium condition (without bias voltage to the photodetector). We have adopted a nonlinear ambipolar transport model to simulate the behavior of photo-generated carriers in the active region of the BGMSM photodetector. From the simulation results, it is observed that for optical pulse positions in the cathode region, the magnitude of the response current is exactly the same but opposite that of the anode region. The response of the photodetector is zero when a pulse is positioned at the center of the active region. This important feature of the device could make it attractive for micro-scale positioning of highly sensitive instruments. Our simulation results agreed well with the experimental results. |
Keywords | BG-MSM photodetector; equilibrium condition; ambipolar transport; simulation |
ANZSRC Field of Research 2020 | 400899. Electrical engineering not elsewhere classified |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Islamic Azad University, Iran |
Curtin University | |
University of Kerman, Iran | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q344x/numerical-modeling-of-the-temporal-response-of-back-gated-metal-semiconductor-metal-photodetector-in-an-equilibrium-condition
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