| Autor: |
Koaib, J., Halidou, I., Kraini, M., Bouguila, N., Vázquez-Vázquez, C., López-Quintela, M. A., Alaya, S. |
| Zdroj: |
Indian Journal of Physics; Jan2023, Vol. 97 Issue 1, p73-84, 12p |
| Abstrakt: |
In2S3 thin films were grown on indium tin oxide-coated glass substrates by a chemical spray pyrolysis technique at different substrate temperatures (300 °C, 360 °C, 400 °C and 460 °C). Structural analysis of the deposited films shows a combination of tetragonal and cubic structures. The crystallite size of the films increases with the substrate temperature. Elemental analysis reveals that the films deposited at substrate temperature of 360 °C are sulfur deficient. Surface topography of the In2S3 thin films was examined by atomic force microscopy (AFM), scanning electron microscopy (SEM) and optical profilometry. The results clearly show that the films adhere well to the substrate with good homogeneity. The surface roughness is also showed to increase with the substrate temperature. The optical properties of In2S3 thin films were studied as a function of wavelength. The transmittance spectra show that the film deposited at 300 °C acquires relatively high transmittance in the visible region. The optical band gap is found to be direct, and it decreases with the increase in substrate temperature. Photoluminescence (PL) study reveals blue and green emissions. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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