![](/images/graphics-bg.png)
Crystal Structure, Lattice Strain, Morphology, and Electrical Properties of SnO2 Nanoparticles Induced by Low Calcination Temperature
Joint Authors
Khaenamkaew, Panya
Manop, Dhonluck
Tanghengjaroen, Chaileok
Palakawong Na Ayuthaya, Worasit
Source
Advances in Materials Science and Engineering
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-07-22
Country of Publication
Egypt
No. of Pages
10
Abstract EN
The electrical properties of tin dioxide (SnO2) nanoparticles induced by low calcination temperature were systematically investigated for gas sensing applications.
The precipitation method was used to prepare SnO2 powders, while the sol-gel method was adopted to prepare SnO2 thin films at different calcination temperatures.
The characterization was done by X-ray diffraction, scanning electron microscopy (SEM), and atomic force microscopy (AFM).
The samples were perfectly matched with the rutile tetragonal structure.
The average crystallite sizes of SnO2 powders were 45 ± 2, 50 ± 2, 62 ± 2, and 65 ± 2 nm at calcination temperatures of 300, 350, 400, and 450°C, respectively.
SEM images and AFM topographies showed an increase in particle size and roughness with the rise in calcination temperature.
The dielectric constant decreased with the increase in the frequency of the applied signals but increased on increasing calcination temperature.
By using the UV-Vis spectrum, the direct energy bandgaps of SnO2 thin films were found as 4.85, 4.80, 4.75, and 4.10 eV for 300, 350, 400, and 450°C, respectively.
Low calcination temperature as 300°C allows smaller crystallite sizes and lower dielectric constants but increases the surface roughness of SnO2, while lattice strain remains independent.
Thus, low calcination temperatures of SnO2 are promising for electronic devices like gas sensors.
American Psychological Association (APA)
Khaenamkaew, Panya& Manop, Dhonluck& Tanghengjaroen, Chaileok& Palakawong Na Ayuthaya, Worasit. 2020. Crystal Structure, Lattice Strain, Morphology, and Electrical Properties of SnO2 Nanoparticles Induced by Low Calcination Temperature. Advances in Materials Science and Engineering،Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1128248
Modern Language Association (MLA)
Khaenamkaew, Panya…[et al.]. Crystal Structure, Lattice Strain, Morphology, and Electrical Properties of SnO2 Nanoparticles Induced by Low Calcination Temperature. Advances in Materials Science and Engineering No. 2020 (2020), pp.1-10.
https://search.emarefa.net/detail/BIM-1128248
American Medical Association (AMA)
Khaenamkaew, Panya& Manop, Dhonluck& Tanghengjaroen, Chaileok& Palakawong Na Ayuthaya, Worasit. Crystal Structure, Lattice Strain, Morphology, and Electrical Properties of SnO2 Nanoparticles Induced by Low Calcination Temperature. Advances in Materials Science and Engineering. 2020. Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1128248
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1128248