Publication Date

2015

Document Type

Dissertation/Thesis

First Advisor

Haji-Sheikh, Michael J.

Degree Name

M.S. (Master of Science)

Department

Department of Electrical Engineering

LCSH

Electrical engineering||PIN diodes--Simulation methods||Silicon diodes--Simulation methods||Photodiodes--Simulation methods||Optoelectronic devices

Abstract

The main objective of this thesis is to design a 100micromx520microm PIN and SDD photodiodes in 2D Luminous: optoelectronic device simulator and study their characteristics. Firstly, simulations are performed at room temperature with the monochromatic light of 1um and optical power densities of 1, 10, 100 microm/cm2. It was found that the photocurrent increases with the intensity of light. SDD diode has sideward electric field that causes increase in the photo-generation current. The simulation results show that the SNR of SDD is 1.6 times greater than that of PIN diode and the responsivity (A/W) of SDD is 1.6-1.75 times greater than that of PIN diode at different optical intensities of light (W/cm2). Secondly, simulations are performed at various temperatures like 15, 25 and 50 °C on the same design. This showed that with the increase of temperature the leakage current increases. It is found that when the sideward electrode of SDD diode is biased at -50V, then it has a higher breakdown voltage of 550V than PIN diode that has a breakdown of 90V. And, it is also observed that the power dissipation (W) in SDD is 1.4- 1.6 times more than that of PIN photodiode. The simulation results are confirmed with the practical values of the PIN photodetector fabricated in the clean room by Dr. Haji-Sheikh, Dr. Ross and Dr. Gregg, professors of Northern Illinois University.

Comments

Advisors: Michael J. Haji Sheikh.||Committee members: Martin Kocanda; Donald S. Zinger.

Extent

100 pages

Language

eng

Publisher

Northern Illinois University

Rights Statement

In Copyright

Rights Statement 2

NIU theses are protected by copyright. They may be viewed from Huskie Commons for any purpose, but reproduction or distribution in any format is prohibited without the written permission of the authors.

Media Type

Text

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