Chromium doped ZnO thin films deposited by chemical spray: Chromium effect
| Autor: | Yasuhiro Matsumoto, A. Maldonado, Rene Asomoza, M. Meléndez-Lira, Dwight Acosta, M. de la L. Olvera |
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| Rok vydání: | 2001 |
| Předmět: |
Materials science
Annealing (metallurgy) Doping Metallurgy Analytical chemistry chemistry.chemical_element Surfaces and Interfaces Condensed Matter Physics Surfaces Coatings and Films Chromium chemistry Electrical resistivity and conductivity X-ray crystallography Transmittance Chemical stability Thin film |
| Zdroj: | Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 19:2097-2101 |
| ISSN: | 1520-8559 0734-2101 |
| Popis: | The influence of chromium doping on the physical properties of ZnO thin films, deposited by the chemical spray technique, is presented. In particular, we have studied the chemical stability of ZnO:Cr as a function of chromium concentration on the starting solution. Although, according to x-ray diffraction measurements, the Cr incorporation into the films remains below 1 at. % for all the concentrations used, a notorious influence is observed on the etching rate, the crystalline orientation, and the surface morphology. The resistivity of the as-deposited films is of the order of 104 Ω cm. After a vacuum annealing at 400 °C its magnitude decreases at around 103 Ω cm. The films show a high transmittance, about 80% at 550 nm, irrespective of the Cr concentration used in the starting solution. |
| Databáze: | OpenAIRE |
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