The effect of thickness on electrical conductivity and optical constant of Fe2O3 thin films
Other Title(s)
تأثير السمك على التوصيلية الكهربائية و الثوابت البصرية لأغشية Fe2O3 الرقيقة
Author
al-Mayyali, Bushra Kazim Hassun
Source
Ibn al-Haitham Journal for Pure and Applied Science
Issue
Vol. 27, Issue 3 (31 Dec. 2014), pp.237-246, 10 p.
Publisher
University of Baghdad College of Education for Pure Science / Ibn al-Haitham
Publication Date
2014-12-31
Country of Publication
Iraq
No. of Pages
10
Main Subjects
Topics
Abstract AR
في هذا البحث أجريت القياسات البصرية و التوصيلية الكهربائية لأغشية أوكسيد الحديد (Fe2O3) المحضرة بطريقة الرش الكيميائي الحراري دالة لتغير السمك (250, 350, 450, and 550) ± 20 nm.
و لقد حسبت التوصية الكهربائية (σ), و طاقات التنشيط (Ea1, Ea2)، و الثوابت البصرية مثل معامل الامتصاص و معامل الخمود و ثابت العزل الكهربائي ضمن مدى الأطوال الموجية (300-900) nm لأغشية (Fe2O3) دالة لتغير السمك، و قد أظهرت كل الأغشية آليتين للانتقال الإلكتروني و لوحظ زيادة التوصيلية الكهربائية مع نقصان طاقات التنشيط بزيادة سمك الأغشية المحضرة.
و بينت القياسات البحرية أن لأغشية (Fe2O3) فجوة طاقة مباشرة و تزداد قيمتها بصورة عامة بزيادة السمك.
Abstract EN
In this research the electrical conductivity and optical measurements were made on the Iron Oxide (Fe2O3) films prepared by chemical spray pyrolysis method as a function of thickness (250, 350, 450, and 550) ± 20 nm.
The measurements of electrical conductivity (σ), activation energies (Ea1, Ea2),and optical constant such as absorption coefficient, refractive index, extinction coefficient and the dielectric constants for the wavelengths in the range (300-900) nm have been investigated on (Fe2O3) thin films as a function of thickness.
All films contain two types of transport mechanisms, and the electrical conductivity (σ) increases whereas the activation energy (Ea) would decrease as the films thickness increases.
The optical measurement shows that the Fe2O3 films have a direct energy gap, and they in general increase with the increase of thickness.
American Psychological Association (APA)
al-Mayyali, Bushra Kazim Hassun. 2014. The effect of thickness on electrical conductivity and optical constant of Fe2O3 thin films. Ibn al-Haitham Journal for Pure and Applied Science،Vol. 27, no. 3, pp.237-246.
https://search.emarefa.net/detail/BIM-546177
Modern Language Association (MLA)
al-Mayyali, Bushra Kazim Hassun. The effect of thickness on electrical conductivity and optical constant of Fe2O3 thin films. Ibn al-Haitham Journal for Pure and Applied Science Vol. 27, no. 3 (2014), pp.237-246.
https://search.emarefa.net/detail/BIM-546177
American Medical Association (AMA)
al-Mayyali, Bushra Kazim Hassun. The effect of thickness on electrical conductivity and optical constant of Fe2O3 thin films. Ibn al-Haitham Journal for Pure and Applied Science. 2014. Vol. 27, no. 3, pp.237-246.
https://search.emarefa.net/detail/BIM-546177
Data Type
Journal Articles
Language
English
Notes
Includes appendices : p. 242-245
Record ID
BIM-546177
