Preparation and characterization of mixed SnO2 : CdO thin films as gas sensor
Other Title(s)
تحضير و خصائص مزيج للأغشية أوكسيد الكادميوم-أوكسيد القصدير كمتحسس غازي
Joint Authors
Fahd, Uthman Abd
Suhayl, Mahdi Hasan
al-Jumayli, Hamid Salih
Source
Issue
Vol. 15, Issue 33 (31 Aug. 2017), pp.28-39, 12 p.
Publisher
University of Baghdad College of Science
Publication Date
2017-08-31
Country of Publication
Iraq
No. of Pages
12
Main Subjects
Abstract EN
In this study, tin oxide (SnO2) and mixed with cadmium oxide (CdO) with concentration ratio of (5,10, 15, 20)% films were deposited by spray pyrolysis technique onto glass substrates at 300ºC temperature.The structure of the SnO2:CdO mixed films have polycrystalline structure with (110) and (101) preferential orientations.
Atomic force microscopy (AFM) show the films are displayed granular structure.
It was found that the grain size increases with increasing of mixed concentration ratio.
The transmittance in visible and NIR region was estimated for SnO2:CdO mixed films.
Direct optical band gap was estimated for SnO2 and SnO2 mixedCdO and show a decrease in the energy gap with increasing mixing ratio.
From Hall measurement,it was found that all the films prepared possess n-type carriers of the charge.
The maximum sensitivity of SnO2:CdO mixed films toward NO2 gas was achieved at (10) mixed concentration ratio of CdO at the optimal operating temperature 200°C and maximum sensitivity is equal to (101.75%) with response time (14.6 s) and recovery time (57.0 s).
American Psychological Association (APA)
Fahd, Uthman Abd& al-Jumayli, Hamid Salih& Suhayl, Mahdi Hasan. 2017. Preparation and characterization of mixed SnO2 : CdO thin films as gas sensor. Iraqi Journal of Physics،Vol. 15, no. 33, pp.28-39.
https://search.emarefa.net/detail/BIM-791834
Modern Language Association (MLA)
Suhayl, Mahdi Hasan…[et al.]. Preparation and characterization of mixed SnO2 : CdO thin films as gas sensor. Iraqi Journal of Physics Vol. 15, no. 33 (2017), pp.28-39.
https://search.emarefa.net/detail/BIM-791834
American Medical Association (AMA)
Fahd, Uthman Abd& al-Jumayli, Hamid Salih& Suhayl, Mahdi Hasan. Preparation and characterization of mixed SnO2 : CdO thin films as gas sensor. Iraqi Journal of Physics. 2017. Vol. 15, no. 33, pp.28-39.
https://search.emarefa.net/detail/BIM-791834
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 38-39
Record ID
BIM-791834