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Effect of the Substrate Movement on the Optical Properties of ZnO Thin Films Deposited by Ultrasonic Spray Pyrolysis
Joint Authors
Source
Advances in Materials Science and Engineering
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-03-15
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Engineering Sciences and Information Technology
Abstract EN
Using a modified ultrasonic spray pyrolysis (USP) system, ZnO thin films were deposited on the substrate moved back and forth (ZO1) and rotated (ZO3) as well as fixed (ZO2) in the conventional USP technique.
Prepared thin films are pure ZnO with a preferred crystalline orientation of (0 0 2) in the hexagonal wurtzite structure.
Diffraction angle shift implies a decrease lattice parameter along c-axis and a-axis 0.2% and 0.3%, respectively.
Maximum strain has been found for ZO1 which is about (−) 0.17%.
These strain values show that presence of compressive strain due to moving substrates as depositing ZnO films.
The film deposition process on the rotated quartz substrate is provided to obtain the thinner film.
The grain size and root-mean- square value of roughness increase with thickness.
Strong UV emission was observed at ∼390 nm assigned to the band gap transition from photoluminescence measurements.
Energy shifted about 39 meV for ZO3 sample with respect to that of ZO2 film deposited in conventional USP system.
This behaviour is confirmed with (002) diffraction peak shifting.
So, the compressed lattice will provide a wider band gap for these films.
E2 phonon frequency values have not given a considerable shifting.
American Psychological Association (APA)
Gungor, Ebru& Gungor, Tayyar. 2012. Effect of the Substrate Movement on the Optical Properties of ZnO Thin Films Deposited by Ultrasonic Spray Pyrolysis. Advances in Materials Science and Engineering،Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-483677
Modern Language Association (MLA)
Gungor, Ebru& Gungor, Tayyar. Effect of the Substrate Movement on the Optical Properties of ZnO Thin Films Deposited by Ultrasonic Spray Pyrolysis. Advances in Materials Science and Engineering No. 2012 (2012), pp.1-7.
https://search.emarefa.net/detail/BIM-483677
American Medical Association (AMA)
Gungor, Ebru& Gungor, Tayyar. Effect of the Substrate Movement on the Optical Properties of ZnO Thin Films Deposited by Ultrasonic Spray Pyrolysis. Advances in Materials Science and Engineering. 2012. Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-483677
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-483677