| Autor: |
Mastryukov, M. V., Son, A. G., Tekshina, E. V., Vaimugin, L. A., Kozyukhin, S. A., Egorysheva, A. V., Brekhovskikh, M. N. |
| Zdroj: |
Russian Journal of Inorganic Chemistry; Oct2022, Vol. 67 Issue 10, p1652-1657, 6p |
| Abstrakt: |
The optical properties of CsSnI3 perovskite thin films were investigated. The thin films were obtained from CsI and SnI2 precursors (special-purity grade, 99.999%, 5N), and also SnI2 (99%) by spin-coating from the corresponding solutions. The films were studied by X-ray powder diffraction analysis, scanning electron microscopy, and optical spectroscopy. It was shown that impurities in the initial components affect the optical properties of the obtained material: the absorption coefficient of the perovskite films synthesized from the special-purity grade SnI2 is higher than those of the films produced from 99% SnI2: 4 × 105 cm–1 and 6 × 105 cm–1, respectively. The optical band gap was estimated using the Tauc and Kubelka–Munk models. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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