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Faculty of Sciences
Document Details
Document Type
:
Article In Journal
Document Title
:
Temperature-Dependent Electrical Properties of Sn-Doped ZnO Nanowires
Temperature-Dependent Electrical Properties of Sn-Doped ZnO Nanowires
Subject
:
physics
Document Language
:
English
Abstract
:
Herein, we report the growth and characterization of Sn-doped ZnO nanowires on silicon substrate by noncatalytic facile thermal evaporation process. The grown nanowires were further characterized in terms of their structural, morphological and electrical properties. The detailed characterizations revealed that the nanowires are grown in high density and possessing well-crystallinity and wurtzite hexagonal phase. To examine the electrical properties, a heterojunction diode based on n-Sn-doped ZnO/p-Si assembly was fabricated. The electrical properties of the fabricated heterojunction diode were examined at low temperature range (77 K-295 K) in both the forward and reverse bias conditions. The study of low temperature dependence of current-voltage characteristics of the heterojunction diode shows that both the quality factor and Schottky barrier height depend on temperature. However, adopting a simple approach that uses a Gaussian distribution of barrier heights, the mean barrier height of similar to 0.73 eV, at the range of low temperatures was found and compared to that of similar to 1.2 eV obtained recently by the authors for the same diode at the range of higher temperatures from similar analysis. An apparent discrepancy found between the results of barrier height extracted from C-V analysis and those from I-V analysis is attributed to adopting different theoretical approaches based on different physical grounds
ISSN
:
1947-2935
Journal Name
:
SCIENCE OF ADVANCED MATERIALS
Volume
:
7
Issue Number
:
12
Publishing Year
:
1436 AH
2015 AD
Article Type
:
Article
Added Date
:
Tuesday, August 15, 2017
Researchers
Researcher Name (Arabic)
Researcher Name (English)
Researcher Type
Dr Grade
Email
S Al-Heniti,
Al-Heniti,, S
Investigator
Doctorate
R. I Badran
Badran, R. I
Researcher
Doctorate
A umar
umar, A
Researcher
Doctorate
Files
File Name
Type
Description
42637.pdf
pdf
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