Study of the influence of annealing temperature on the structural and optical properties of ZnTe prepared by vacuum thermal evaporation technique
Joint Authors
Ali, Sarmad M.
Shihab, Alya A. A.
Makki, Samir Ata
Source
Ibn al-Haitham Journal for Pure and Applied Science
Issue
Vol. 31, Issue 1 (30 Apr. 2018), pp.50-57, 8 p.
Publisher
University of Baghdad College of Education for Pure Science / Ibn al-Haitham
Publication Date
2018-04-30
Country of Publication
Iraq
No. of Pages
8
Main Subjects
Abstract EN
The ZnTe alloy was prepared as deposited thin films on the glass substrates at a thickness of 400±20 nm using vacuum evaporation technique at pressure (1 × 10-5) mbar and room temperature.
Then the thin films under vacuum (2 × 10-3 mbar) were annealing at (RT,100 and 300) °C for one hour.
The structural properties were studied by using X-ray diffraction and AFM, the results show that the thin films had approached the single crystalline in the direction (111) as preferred orientation of the structure zinc-blende for cubic type, with small peaks of tellurium (Te) element for all prepared thin films.
The calculated crystallite size (Cs) decreased with the increase in the annealing temperature, from (25) nm before the annealing to (21) nm after the annealing.
The images of atomic force microscopy of all thin films appeared a homogenous structure and high smoothness through roughness values that increased slightly from (1.4) nm to (3.4) nm.
The optical properties of the ZnTe at (RT,100 and 300) °C were studied transmittance and absorbance spectrum as a function of the wavelength.
The energy gap was found about (2.4) eV for the thin films before the annealing and increased slightly to (2.5) eV after annealing at 300 °C
American Psychological Association (APA)
Ali, Sarmad M.& Shihab, Alya A. A.& Makki, Samir Ata. 2018. Study of the influence of annealing temperature on the structural and optical properties of ZnTe prepared by vacuum thermal evaporation technique. Ibn al-Haitham Journal for Pure and Applied Science،Vol. 31, no. 1, pp.50-57.
https://search.emarefa.net/detail/BIM-852903
Modern Language Association (MLA)
Shihab, Alya A. A.…[et al.]. Study of the influence of annealing temperature on the structural and optical properties of ZnTe prepared by vacuum thermal evaporation technique. Ibn al-Haitham Journal for Pure and Applied Science Vol. 31, no. 1 (2018), pp.50-57.
https://search.emarefa.net/detail/BIM-852903
American Medical Association (AMA)
Ali, Sarmad M.& Shihab, Alya A. A.& Makki, Samir Ata. Study of the influence of annealing temperature on the structural and optical properties of ZnTe prepared by vacuum thermal evaporation technique. Ibn al-Haitham Journal for Pure and Applied Science. 2018. Vol. 31, no. 1, pp.50-57.
https://search.emarefa.net/detail/BIM-852903
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 57
Record ID
BIM-852903