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Bandwidth Analysis of a p-π-n Si Photodetector

by Mohammed Sh. Ahmed, Yassir TH. AL-Tulaihi, Haider TH. Salim ALRikabi
journal cover thumbnail

International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 134 - Number 12
Year of Publication: 2016
Authors: Mohammed Sh. Ahmed, Yassir TH. AL-Tulaihi, Haider TH. Salim ALRikabi
10.5120/ijca2016908097

Mohammed Sh. Ahmed, Yassir TH. AL-Tulaihi, Haider TH. Salim ALRikabi . Bandwidth Analysis of a p-π-n Si Photodetector. International Journal of Computer Applications. 134, 12 ( January 2016), 35-41. DOI=10.5120/ijca2016908097

@article{ 10.5120/ijca2016908097,
author = { Mohammed Sh. Ahmed, Yassir TH. AL-Tulaihi, Haider TH. Salim ALRikabi },
title = { Bandwidth Analysis of a p-π-n Si Photodetector },
journal = { International Journal of Computer Applications },
issue_date = { January 2016 },
volume = { 134 },
number = { 12 },
month = { January },
year = { 2016 },
issn = { 0975-8887 },
pages = { 35-41 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume134/number12/23969-2016908097/ },
doi = { 10.5120/ijca2016908097 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T23:34:03.577705+05:30
%A Mohammed Sh. Ahmed
%A Yassir TH. AL-Tulaihi
%A Haider TH. Salim ALRikabi
%T Bandwidth Analysis of a p-π-n Si Photodetector
%J International Journal of Computer Applications
%@ 0975-8887
%V 134
%N 12
%P 35-41
%D 2016
%I Foundation of Computer Science (FCS), NY, USA
Abstract

The aim of this study is the bandwidth analysis of a p-π-n photodetector, three different junction areas (0.008, 0.014, 0.02) mm2 were used with π-layer width of 5 μm, and the π-layer width required to get maximum bandwidth is 3.4 μm. The results showed that the bandwidth increases with the decreasing of detector area, this is because when detector area decreases the junction capacitance also decreases. The obtained bandwidth is 7.8 GHz at π-layer width of 5 μm, the required biasing voltage is 17.55 V. The best bandwidth obtained is 9 GHz at a π-layer width of 3.4 μm, an area of 0.008 mm2 and required biasing voltage is 11.934 V. In this paper mathematical relations have been found to get bandwidth, maximum bandwidth, and the requirements to achieve it. The requirements include choosing values of, π-layer width, biasing voltage, electric field, and carriers velocity. The mathematical relations results are very close to the experimental results. The results are achieved with the aid of MATLAB programming tool version 8.5.0.1976013 (R2015a).

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Index Terms

Computer Science
Information Sciences

Keywords

Si p-π-n Photodetector Bandwidth Photodiode.

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