Investigation of the Structural, Optical and Electrical Properties of Zinc Oxide Co-Doped with Fluorine and Cobalt
| Autor: | Abdallah Diha, Said Benramache, Lahcene Fellah, Okba Belahssen |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Radiation Materials science Inorganic chemistry chemistry.chemical_element 02 engineering and technology Zinc 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Spray pyrolysis Characterization (materials science) chemistry 0103 physical sciences Fluorine General Materials Science Thin film 0210 nano-technology Cobalt Co doped |
| Zdroj: | Defect and Diffusion Forum. 406:285-291 |
| ISSN: | 1662-9507 |
| DOI: | 10.4028/www.scientific.net/ddf.406.285 |
| Popis: | Zinc oxide codoped with Fluorine and Cobalt thin films (FCZO) were successfully synthesized on heated glass substrate at 380 °C by spray pyrolysis technique. The influence of doping and codoping on the structural, optical and electrical properties were investigated. X-ray diffraction results showed that the undoped and FCZO films exhibit the hexagonal wurtzite crystal structure with a preferential orientation along [0 0 2] direction. No secondary phase is observed in FCZO films. The optical transmittance of Co doped ZnO thin films reduces up to 80 % as compared to undoped ZnO thin film in the visible region. We have observed three absorption bands at 568, 608 and 659 nm which can be attributed to the d-d transitions of tetrahedrally coordinated Co2+ ion in the high spin state. The band gap was found to be increasing in the range of 3.26-3.39 eV with Co doping whereas it decreases for higher doping of Co concentration. |
| Databáze: | OpenAIRE |
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