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Complexing agent ethelene-diamine tetra acetic acid (EDTA) (sodium salt) is
added in the aqueous solution of Europium chalcogenide (EuS) to deposit thin films on nonconductive
glass substrates using spray pyrolysis technique at different substrate
temperatures. The films synthesized were studied by XRD, SEM, EDAX and UV-Visible
spectrometry. The effect of complexing agent was studied on morphological and optical
properties. The XRD studies reveal that the material formed on glass substrates is europium
sulphide, films are of polycrystalline in nature. The size for the deposited material is about
200 µm. The SEM studies show that total substrate surface uniformly covered by the film
along with cracks.
Keywords: EDTA; EuS; spray pyrolysis; thin films; XRD |
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