Physical properties of Mn Dopped CuAlS2 pyrolytic thin films
Joint Authors
Khalid, Marib A.
Katti, Sumayyah H.
Source
Journal of Basrah Researches : Sciences
Issue
Vol. 33, Issue 1A (31 Mar. 2007), pp.94-102, 9 p.
Publisher
University of Basrah College of Education for Pure Sciences
Publication Date
2007-03-31
Country of Publication
Iraq
No. of Pages
9
Main Subjects
Topics
Abstract AR
تم في هذا البحث تحضير أغشية CuAlS2 المشوبة بعنصر Mn بطريقة الرش الكيميائي الحراري.
درجة حرارة التحضير (613) كلفن و على قواعد زجاجية. من دراسة الخواص الضوئية للأغشية كدالة لنسبة التشويب بعنصر Mn تبين أن فجوة الطاقة المباشرة تقع ضمن المدى (3.29 - 2.92) ev لنسب التشويب (0.1 - 5) wt% تم حساب التوصيلة الكهربائية المستمرة للأغشية المشوبة و ضمن درجة قياس حرارية (400 - 300) كلفن و قد تبين بأنه عند الدرجات الحرارية الواطئة تكون كل من التوصيلة الكهربائية و طاقة التنشيط دالة إلى تركيز الشوائب حتى نسبة 0.7% و تقريبا تكون ثابتة عند تركيز أكبر من 0.7%.
Abstract EN
CuAlS2:Mn thin films were prepared by spray pyrolysis technique.
The prepared films were deposited on the glass substrate temperature Ts of 613οK.
The optical properties were studied as a function of Mn doping concentration.
The estimated direct energy gaps are in the range (3.29-2.92)eV for Mn concentration range (0.1-5) wt%.
The DC electrical conductivity of pyrolytic-sprayed CuAlS2 thin films doped with Mn is measured in the temperature range (300-400οK).
The doping concentration ranges from 0% to 5% by weight.
In the lower temperature region, the conductivity and the activation energy are functions of doping concentration for less than 0.7%.
However they are nearly constant for concentration more than 0.7%.
In contrast for what is expected, the overall conductivity decreases with a doping concentration.
Under the band model, the behavior of the electric conductivity is attributed to the existence of donor’s levels and the effect of replacement of Mn in the Al site as a favorable one.
American Psychological Association (APA)
Khalid, Marib A.& Katti, Sumayyah H.. 2007. Physical properties of Mn Dopped CuAlS2 pyrolytic thin films. Journal of Basrah Researches : Sciences،Vol. 33, no. 1A, pp.94-102.
https://search.emarefa.net/detail/BIM-382395
Modern Language Association (MLA)
Khalid, Marib A.& Katti, Sumayyah H.. Physical properties of Mn Dopped CuAlS2 pyrolytic thin films. Journal of Basrah Researches : Sciences Vol. 33, no. 1A (Mar. 2007), pp.94-102.
https://search.emarefa.net/detail/BIM-382395
American Medical Association (AMA)
Khalid, Marib A.& Katti, Sumayyah H.. Physical properties of Mn Dopped CuAlS2 pyrolytic thin films. Journal of Basrah Researches : Sciences. 2007. Vol. 33, no. 1A, pp.94-102.
https://search.emarefa.net/detail/BIM-382395
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 101-102
Record ID
BIM-382395