Optical, Electrical, and Morphological Effects of Yttrium Doping of Cadmium Oxide Thin Films Grown by Ultrasonic Spray Pyrolysis
| Autor: | Silan Baturay, T. Kılıçoğlu, Yusuf Selim Ocak, Ahmet Tombak |
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| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Soda-lime glass Materials science Doping Analytical chemistry chemistry.chemical_element 02 engineering and technology Yttrium 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Grain size Electronic Optical and Magnetic Materials chemistry.chemical_compound Lattice constant chemistry 0103 physical sciences Materials Chemistry Cadmium oxide Crystallite Electrical and Electronic Engineering Thin film 0210 nano-technology |
| Zdroj: | Journal of Electronic Materials. 46:2090-2096 |
| ISSN: | 1543-186X 0361-5235 |
| DOI: | 10.1007/s11664-016-5134-9 |
| Popis: | CdO films doped with Y concentrations of 0%, 1%, 2%, and 3% were deposited onto soda lime glass using ultrasonic spray pyrolysis. The effect of the doping level on the structural, morphological, optical, and electrical properties of the films was characterized. X-ray diffraction analysis was used to establish that all of the samples were polycrystalline and to determine the structural parameters, i.e., lattice spacing (d), phases and associated (hkl) planes, grain size (D), and dislocation density (δ). The films possessed high conductivity and carrier concentration, showing n-type semiconducting behavior. The films were almost transparent over the range from 600 nm to 1100 nm. The energy bandgap was 2.43 eV, 2.53 eV, 2.68 eV, and 2.70 eV for Y doping of 0%, 1%, 2%, and 3%, respectively. The refractive index and extinction coefficient of the films over the range from 700 nm to 1100 nm were determined by spectroscopic ellipsometry. Atomic force microscopy revealed the effect of Y doping on the surface morphology of the CdO films. |
| Databáze: | OpenAIRE |
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