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The effect of annealing temperature on the optical properties of the a-Ge : as thin films
Other Title(s)
تأثير التلدين على الخواص البصرية للأغشية a-Ge : As الرقيقة
Author
Source
Ibn al-Haitham Journal for Pure and Applied Science
Issue
Vol. 19, Issue 3 (30 Sep. 2006), pp.9-20, 12 p.
Publisher
University of Baghdad College of Education for Pure Science / Ibn al-Haitham
Publication Date
2006-09-30
Country of Publication
Iraq
No. of Pages
12
Main Subjects
Topics
Abstract AR
تم تحضير أغشية a-Ge : As الرقيقة بتقنية التبخير الحراري.
و من ثم لدنت إلى مختلف درجات الحرارة ضمن المدى (373-473) K.
إن نتيجة طيف حيود الأشعة السينية بينت أن النماذج عشوائية التركيب قبل و بعد التلدين.
إن البحث يدرس تأثير درجات حرارة التلدين كدالة للطول الموجي على فجوة الطاقة البصرية و الثوابت البصرية لأغشية a-Ge : As الرقيقة.
لقد بينت النتائج أن قيم فجوة الطاقة البصرية Egopt تزداد مع زيادة درجات حرارة التلدين ضمن مدى القياس نتيجة لنقصان حالات العيوب قرب الحزمة.
إن معامل الانكسار و الجزء الحقيقي و الخيالي من ثابت العزل و معامل الخمود يقل مع زيادة درجة حرارة التلدين.
Abstract EN
a-Ge: As thin ٢١١™$ have prepared by thermal evaporation teclinique, then they were annealing at various temperatures within the range (3?3-473) K.
'1'hc result of X-ray diffraction $peetrum was showing that all the specimens remained in amorphous structure before and after annealing process.
This paper studied the cffcct of annealing temperature as a function of ^•avelength on the optical energy gap and optical constants for the a-Ge:As thin films .
Results have showed that there was an increasing in the optical energy gap (Eg0pt) values with the increasing of the annealing temperatures within the range of measurements due to the decrease in defect states near the bands.
The refraction index ٠ real and imagina^ parts of dielectric constant and the extinction coefficient decrease with the increasing of the annealing temperatures.
American Psychological Association (APA)
Khudayr, Iman Hamid. 2006. The effect of annealing temperature on the optical properties of the a-Ge : as thin films. Ibn al-Haitham Journal for Pure and Applied Science،Vol. 19, no. 3, pp.9-20.
https://search.emarefa.net/detail/BIM-356251
Modern Language Association (MLA)
Khudayr, Iman Hamid. The effect of annealing temperature on the optical properties of the a-Ge : as thin films. Ibn al-Haitham Journal for Pure and Applied Science Vol. 19, no. 3 (2006), pp.9-20.
https://search.emarefa.net/detail/BIM-356251
American Medical Association (AMA)
Khudayr, Iman Hamid. The effect of annealing temperature on the optical properties of the a-Ge : as thin films. Ibn al-Haitham Journal for Pure and Applied Science. 2006. Vol. 19, no. 3, pp.9-20.
https://search.emarefa.net/detail/BIM-356251
Data Type
Journal Articles
Language
English
Notes
Includes appendix : p. 15-19
Record ID
BIM-356251