Abstract
In the present work, zinc oxide (ZnO) thin films were deposited by pyrolysis spray technique on glass substrate temperature 350°C, using the zinc acetate with a molarity of 0.1M. Our interest is on the investigation of the nozzle-substrate distance on the structural and optical properties of the films. Structural analysis by X-ray diffraction showed that the deposited films have a preferred orientation along the direction (002) and are relatively uniform. The spectrophotometer UV-Visible confirms that it is possible to get good transparent ZnO films with a transmission of 80 to 95% in the visible. The values of optical gaps Eg deduced from the spectra of UV-Visible transmissions vary between 3.21 and 3.25 eV.
Highlights
IntroductionThe thin films of zinc oxide ZnO aroused a great interest, like conducting transparent oxides
During these last decades, the thin films of zinc oxide ZnO aroused a great interest, like conducting transparent oxides
The crystal structure of the ZnO thin film was determined by X-ray diffraction (XRD) using diffractometer with CuKα X-ray source
Summary
The thin films of zinc oxide ZnO aroused a great interest, like conducting transparent oxides This is with the properties optical and electric zinc oxide, its thermal and chemical stability very high, it’s no toxicity like its abundance in the nature more; it presents a gap of 3,3eV and an excitonic binding energy of 60meV. These films were used in several electronic and optoelectronic fields such as: sensors with conducting gases [1], thermal barriers [2], the solar cells [3]. Abdelkader Hafdallah et al: Effect of the Nozzle-Substrate Distance on the Structural and Optical Propreties of
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