Effect of Different Thicknesses of ZnS Thin Films on its Optical and Structural Properties

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Abstract:

ZnS films have been deposited on glass by chemical bath deposition (CBD). The optical and structural properties were analyzed by UV-VIS spectrophotometer and X-ray diffraction (XRD). The results showed that different sides of glass substrate have different thicknesses of the ZnS thin films, which can affect the optical and structural properties of ZnS thin films. The ZnS films of the side of glass substrates back to the solution center are thicker than that of the other side, and the ZnS films from ZnSO4 are thicker than that from Zn (NO3)2. The transmittances lower with the thicknesses of ZnS films increasing. The band gaps exhibit blue response with the thicknesses of ZnS films increasing. From the sides of glass substrates back to the solution center, the (111) reflection of the sphalerite structure can be observed at about 2θ=29.1°, while from the other side toward the solution center showed no significant peak.

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185-188

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May 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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