Preparation and study of the effect of annealing temperature on the structural, optical, and morphological properties of nanocrystalline SnO2 doped with Cu
Joint Authors
Abbas, Nada Khudayr
Shakir, Duha Sad
Source
Iraqi Journal of Industrial Research
Issue
Vol. 8, Issue 2 (31 Aug. 2021), pp.28-40, 13 p.
Publisher
Ministry of Industry and Minerals Corporation of Research and Industrial Development
Publication Date
2021-08-31
Country of Publication
Iraq
No. of Pages
13
Main Subjects
Topics
- Copper
- Electron microscopes
- Crystal structure
- Permeability
- Annealing of metals
- Absorption
- Refractive index
- Morphology
- Emission of electrons
Abstract EN
In this study, pure SnO2 nanocrystalline films were doped with copper using the spray pyrolysis technique.
SnCl2.2H2O, CuCl2.2H2O were used as precursors.
The preparation was done in the form of nanoparticles by chemical precipitation method.
The prepared materials were annealed at 300°C and 500°C for 1 h to improve crystallization.
XRD results of the samples prepared by spray pyrolysis of a solution containing nanoparticles showed that the samples were crystallized in the rutile tetragonal phase.
The average crystal size of SnO2 annealed at 300°C is 3.36 and 3.37 nm for pure and doped samples, respectively, and it is 4.1 nm and 9.75 nm for pure and doped annealed at 500°C, respectively.
It is noticed that the crystal structure of SnO2 does not change with the addition of copper, and the studies of Field Emission Scanning Electron Microscopy confirmed the results where the grain size was within the range (20-50) nm, and the thickness of the films obtained from this assay was in the range (0.9-1.15) µm, with the thickness of doped films at 500°C are higher than those at 300°C.
The Atomic Force Microscopy results showed that the roughness rate of the pure films annealed at 300°C and 500°C is 7.99 and 17.4 nm, respectively, while roughness for doped annealed samples were 9.09 and 7.12 nm, respectively.
The optical results obtained from UV-Vis analysis showed that the optical bandgap at 300°C for pure and doped samples was (3.40 and 2.8) eV, respectively, while it was (3.75 and 2.59) eV at 500°C for pure and doped samples, respectively.
The transmittance decreases with increasing annealing temperature, because the orbance increases.
The extinction coefficient increases, while refractive index decreases with increasing annealing temperature.
The orbance was 0.94 and 1.17 for pure and doped samples at 300°C, and was 1.16 and 1.46 at 500°C.
American Psychological Association (APA)
Abbas, Nada Khudayr& Shakir, Duha Sad. 2021. Preparation and study of the effect of annealing temperature on the structural, optical, and morphological properties of nanocrystalline SnO2 doped with Cu. Iraqi Journal of Industrial Research،Vol. 8, no. 2, pp.28-40.
https://search.emarefa.net/detail/BIM-1366660
Modern Language Association (MLA)
Abbas, Nada Khudayr& Shakir, Duha Sad. Preparation and study of the effect of annealing temperature on the structural, optical, and morphological properties of nanocrystalline SnO2 doped with Cu. Iraqi Journal of Industrial Research Vol. 8, no. 2 (2021), pp.28-40.
https://search.emarefa.net/detail/BIM-1366660
American Medical Association (AMA)
Abbas, Nada Khudayr& Shakir, Duha Sad. Preparation and study of the effect of annealing temperature on the structural, optical, and morphological properties of nanocrystalline SnO2 doped with Cu. Iraqi Journal of Industrial Research. 2021. Vol. 8, no. 2, pp.28-40.
https://search.emarefa.net/detail/BIM-1366660
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 39-40
Record ID
BIM-1366660