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Investigations In Structural Morphological And Optical Properties Of Cd1-Xsnxs Thin Films |
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PP: 89-102 |
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doi:10.18576/ijtfst/090202
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Author(s) |
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M. N. Amroun,
A. H. Kacha,
K. Salim,
M. Khadraoui,
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Abstract |
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| Cd1_xSnxS thin films with different concentrations x (x= 0 at%, 2 at%, 4 at%, 6 at% and 8 at %) were grown onto the glass substrates using spray pyrolysis technique. The structural, morphological and optical properties of pure CdS (x=0) and Cd1_xSnxS ternary alloy thin films for different concentrations x were investigated. X-ray diffraction study showed that the deposited films were polycrystalline with hexagonal structure and the crystallinity of the CdS films has improved with Sn incorporation. The morphological and compositional properties of the deposited films have been investigated using scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). SEM images revealed that tin addition caused notable changes in the surface morphology of the Cd1_xSnxS thin films.
Also, the addition of Sn+2 ions improved the optical transmittance of the films. However, the optical absorption studies revealed that Sn addition did not change the absorption band gap of the prepared thin films. The variations of photocurrent density Jph of the pure CdS and Cd1_xSnxS ternary alloy thin films have been investigated depending on Tin contents. |
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