Effect of Annealing on the Structural and Optical Properties of CuIn&amp;lt;sub&amp;gt;1–x&amp;lt;/sub&amp;gt;Al&amp;lt;sub&amp;gt;x&amp;lt;/sub&amp;gt;S&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt; thin Films

Smaïli, F.

doi:10.4236/msa.2011.29164

Cited by 1 publication

(1 citation statement)

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“…However, the transmittance decreases as the content of aluminium in the films decreases with CAS3 having the lowest. This is believed to be due to the nonhomogeneous nature of CAS3 as observed by the SEM micrograph (Figure 3c) (Smaili 2011). Also, the high transparency in the visible region implies that the films absorb less photon of light imposed on it.…”

Section: Structural Analysismentioning

confidence: 92%

Morphology and optical properties of CuAlS<sub>2</sub> crystals prepared using the solid-phase Al and S precursors

et al. 2020

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Copper dithiocarbamate and aluminium dithiocarbamate were prepared and then characterized by infrared spectroscopy. The combination of the prepared precursors in different ratios was deposited on glass substrates using metalorganic chemical vapour deposition (MOCVD) technique at 450 o C through the pyrolysis of the precursors to yield Cu-Al-S thin films. Compositional, morphological, structural and optical characterizations were then carried out. The compositional analysis revealed that the ratio of Cu to Al in the precursor is not preserved in the films. Morphological study showed that the films are polycrystalline in nature whose homogeneity and grain size distribution decrease with a decrease in Al content of the films. The crystallinity of the films was further revealed from the PXRD results with the formation of the Cu-Al-S crystal structure as the Al content increases in the precursor. The energy gap obtained falls between 2.63 and 2.75 eV which decreases as the Al content in the films decreases. Optical constants such as refractive index and extinction coefficient exhibit a decreasing trend as the Al content in the film decreases.

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Section: Structural Analysismentioning

confidence: 92%