Co doping induced structural and optical properties of sol–gel prepared ZnO thin films
| Autor: | Deniz Caliskan, Tayyar Gungor, Ebru Gungor, Ekmel Ozbay, Abdullah Ceylan |
|---|---|
| Přispěvatelé: | Özbay, Ekmel, Fizik Mühendisliği |
| Rok vydání: | 2014 |
| Předmět: |
Diffraction
Materials science Optical films Materials Science Analytical chemistry General Physics and Astronomy Lattice (order) Sol-gels Semiconductor doping Thin film Cobalt oxide Ultrasonic spray pyrolysis Metallic films Sol-gel Wurtzite crystal structure ZnO [Co] Optical properties Physics Doping Spray pyrolysis Surfaces and Interfaces General Chemistry Condensed Matter Physics Critical value Surfaces Coatings and Films Chemistry Optical lattices ZnO Film preparation |
| Zdroj: | Applied Surface Science |
| ISSN: | 0169-4332 |
| DOI: | 10.1016/j.apsusc.2014.06.132 |
| Popis: | Cataloged from PDF version of article. The preparation conditions for Co doping process into the ZnO structure were studied by the ultrasonic spray pyrolysis technique. Structural and optical properties of the Co:ZnO thin films as a function of Co concentrations were examined. It was observed that hexagonal wurtzite structure of ZnO is dominant up to the critical value, and after the value, the cubic structural phase of the cobalt oxide appears in the X-ray diffraction patterns. Every band-edge of Co:ZnO films shifts to the lower energies and all are confirmed with the PL measurements. Co substitution in ZnO lattice has been proved by the optical transmittance measurement which is observed as the loss of transmission appearing in specific region due to Co2+ characteristic transitions. © 2014 Elsevier B.V. All rights reserved. |
| Databáze: | OpenAIRE |
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