Main Page
عربي
English
About
Admission
Academic
Research and Innovations
University Life
E-Services
Search
Faculty of Science and Arts - Khulais
Document Details
Document Type
:
Article In Journal
Document Title
:
“Substrate and annealing temperature on the optical and electrical properties of Ge20Te80 films”
تأثير درجة حرارة أسطح الترسيب والتخمير على الخصائص الضوئية والكهربية لأفلام الجرمانيوم تليريوم
Subject
:
Surface Engineering, Surface Instrumentation & Vacuum Technology--- Physics
Document Language
:
English
Abstract
:
Ge20Te80 films were deposited by thermal evaporation technique onto chemically cleaned glass substrates kept at different substrate temperatures (Tsub = 203; 233 and 273 K). The optical data indicated that the width of the localized states tails (Ee) increases while the optical gap (Eo) decreases with increasing the substrate and annealing temperature of the investigated films. From the electrical measurements, the activation energy for conduction and the density of localized states at the Fermi energy, N)EF) were obtained. The effects of the substrate and annealing temperature on the width of localized states tails and on the density of localized states at the Fermi level have enhanced each other. The changes in the optical and electrical properties are correlated with the amorphous–crystalline transformations.
ISSN
:
0042-207x
Journal Name
:
Vacuum
Volume
:
72
Issue Number
:
2
Publishing Year
:
1426 AH
2004 AD
Article Type
:
Article
Added Date
:
Tuesday, December 28, 2010
Researchers
Researcher Name (Arabic)
Researcher Name (English)
Researcher Type
Dr Grade
Email
فريد محمد عبد الرحيم محمد عبد الرحيم
Abdel-Rahim, Farid Mohammad
Researcher
Doctorate
farid.elkhateb@gmail.com
Files
File Name
Type
Description
28324.pdf
pdf
Back To Researches Page