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Influence of doping fluorine on the structural, surface morphological and optical properties of CdO films
- Publication Year :
- 2017
- Publisher :
- Springer Verlag, 2017.
-
Abstract
- Çoban, Mustafa Burak (Balikesir Author)<br />CdO and CdO:F films were prepared by ultrasonic spray pyrolysis method on glass substrates at temperature of 250 +/- 5 degrees C. The structural and optical properties of pure and fluorine doped CdO films were characterized by XRD measurements and UV-VIS spectra, respectively. X-ray diffraction patterns show that the films have the polycrystalline structure with preferred orientation along (111) plane. Scherrer Method and Williamson Hall Method were used for calculating of the crystalline grains and strains of films. It is observed that the films at 8% F doped has better crystallinity level, and F doping decreases the defects in CdO films and improves crystallite quality. By UV-VIS spectra, it is revealed that the film with 8% F doped has a high transmittance about 65% in the visible region together with a direct band gap of 2.70 eV. Thicknesses, refractive indices and extinction coefficient values are determined by spectroscopic ellipsometry technique using Cauchy-Urbach model.<br />Research Fund of Dumlupinar University, Kutahya, Turkey 2011-5
- Subjects :
- Materials science
Band gap
Sol-Gel Method
Analytical chemistry
Laser Deposition
Mineralogy
02 engineering and technology
Electrical-Properties
01 natural sciences
Highly Transparent
Crystallinity
0103 physical sciences
Tio2 Films
Zno
Transmittance
General Materials Science
Physical-Properties
010302 applied physics
Doping
General Chemistry
Molar absorptivity
021001 nanoscience & nanotechnology
Spectroscopic Ellipsometry
Ultrasonic Spray-Pyrolysis
X-ray crystallography
Direct and indirect band gaps
Crystallite
0210 nano-technology
Oxıde Thın-Fılms
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....196aaee9c5b4ddaec06ae9b9ec9d3c1e