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Document Details
Document Type
:
Article In Journal
Document Title
:
Influence of illumination intensity and temperature on the electrical characteristics of an Al/pGaAs/ In structure prepared by thermal evaporation
Influence of illumination intensity and temperature on the electrical characteristics of an Al/pGaAs/ In structure prepared by thermal evaporation
Subject
:
physics
Document Language
:
English
Abstract
:
The temperature and illumination intensity dependence of currentvoltage (IV) and capacitancevoltage (CV) characteristics of the Al/pGaAs barrier diode were investigated. The ideality factor (n) and zerobias barrier height (Phi(b0)) were found to be strongly temperature dependent and while Phi(b0) is decreased, n is increased with decreasing temperature and illumination. The reverse biased IV measurements under various illuminations exhibited a high photosensitivity. The values of Rs obtained from Cheung's method are decreased with increasing illumination intensity. The interface capacitance of the diode is increased with the increase of illumination intensities. The profiles of interface state density (Nss) distribution as a function of (EssE) were extracted from the forward IV measurements by taking into account the bias dependence of the effective barrier heights (phi(e)) for device under dark, illumination and temperature conditions. Furthermore, modified Richardson plot has a good linearity over the investigated temperature range. As a result, the electrical characteristics of diode are affected not only in illumination but also in temperature. It is evaluated that the prepared diode can be used as photocapacitance sensor in modern electronic and optoelectronic devices
ISSN
:
01679317
Journal Name
:
MICROELECTRONIC ENGINEERING
Volume
:
99
Issue Number
:
1
Publishing Year
:
1433 AH
2012 AD
Article Type
:
Article
Added Date
:
Saturday, July 22, 2017
Researchers
Researcher Name (Arabic)
Researcher Name (English)
Researcher Type
Dr Grade
Email
M (Soylu
(Soylu, M
Investigator
Doctorate
A.A AlGhamd
AlGhamd, A.A
Researcher
Doctorate
F Yakuphanoglu
Yakuphanoglu, F
Researcher
Doctorate
fyhanoglu@firat.edu.tr
Files
File Name
Type
Description
42163.pdf
pdf
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