SPECTROSCOPIC ELLIPSOMETRY INVESTIGATION ON OPTICAL PROPERTIES OF Fe:SNO2 THIN FILMS: EFFECTS OF IRON CONCENTRATION

Sahar Moradi and Hassan Sedghi ()
Additional contact information
Sahar Moradi: Department of Physics, Urmia University, Urmia, Iran
Hassan Sedghi: Department of Physics, Urmia University, Urmia, Iran

Surface Review and Letters (SRL), 2021, vol. 28, issue 02, 1-7

Abstract: Nanostructured Fe:SnO2 thin films were deposited on glass substrates through sol–gel spin coating method. Films were synthesized with different iron quantities including 0%, 4%, 8% and 12% (wt.%). The effects of Fe concentration on optical properties of films were investigated by spectroscopic ellipsometry (SE) technique. SE measured (Ψ,Δ) parameters for films in the wavelength range between 300nm to 800nm. Optical properties including the refractive index, extinction coefficient, transmittance, dielectric constants and optical conductivity were determined by fitting the SE measured (Ψ,Δ) parameters and data obtained from the optical model-based analysis. Results showed that the transmittance values increase by increment of Fe concentration from 0% to 12%. The bandgap energy (Eg) of prepared thin films was also calculated. Eg values were between 3.44 and 3.58eV. Dispersion parameters including the high frequency dielectric constant (ε∞) and the ratio of free carrier concentration to effective mass (N/m∗) were then obtained for the prepared films.

Keywords: Thin film; SnO2; sol–gel; spectroscopic ellipsometry; doping; optical properties (search for similar items in EconPapers)
Date: 2021
References: Add references at CitEc
Citations:

Downloads: (external link)
http://www.worldscientific.com/doi/abs/10.1142/S0218625X20500444
Access to full text is restricted to subscribers

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:wsi:srlxxx:v:28:y:2021:i:02:n:s0218625x20500444

Ordering information: This journal article can be ordered from

DOI: 10.1142/S0218625X20500444

Access Statistics for this article

Surface Review and Letters (SRL) is currently edited by S Y Tong

More articles in Surface Review and Letters (SRL) from World Scientific Publishing Co. Pte. Ltd.
Bibliographic data for series maintained by Tai Tone Lim ().